chore: add copyright headers

Make sure we obey the REUSE (https://reuse.software) specification and the
origin, copyright owner, and license of all files are clearly marked.

The whole project is under the EPL-2.0, except for trivial files where copyright
is not applicable that are marked with the CC0-1.0 license. Moreover, code
included from third parties is also available under the respective license.

chore: add CONTRIBUTORS.md

List all authors and supporting organizations in accordance with the REUSE
specification.

526 files changed, 2835 insertions, 9 deletions

diff --git a/subprojects/frontend/.eslintrc.cjs b/subprojects/frontend/.eslintrc.cjs
index dc03d721..466e5668 100644
--- a/subprojects/frontend/.eslintrc.cjs
+++ b/subprojects/frontend/.eslintrc.cjs
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 const path = require('node:path');
 
 // Allow the Codium ESLint plugin to find `tsconfig.json` from the repository root.
diff --git a/subprojects/frontend/assets-src/favicon.svg.license b/subprojects/frontend/assets-src/favicon.svg.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/assets-src/favicon.svg.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/assets-src/icon.svg.license b/subprojects/frontend/assets-src/icon.svg.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/assets-src/icon.svg.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/assets-src/mask-icon.svg.license b/subprojects/frontend/assets-src/mask-icon.svg.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/assets-src/mask-icon.svg.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/build.gradle.kts b/subprojects/frontend/build.gradle.kts
index 80f10f7e..9fd99742 100644
--- a/subprojects/frontend/build.gradle.kts
+++ b/subprojects/frontend/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import org.siouan.frontendgradleplugin.infrastructure.gradle.RunYarn
 import tools.refinery.gradle.utils.SonarPropertiesUtils
 
diff --git a/subprojects/frontend/config/backendConfigVitePlugin.ts b/subprojects/frontend/config/backendConfigVitePlugin.ts
index 7a6bc3db..3bffce3a 100644
--- a/subprojects/frontend/config/backendConfigVitePlugin.ts
+++ b/subprojects/frontend/config/backendConfigVitePlugin.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { PluginOption } from 'vite';
 
 import type BackendConfig from '../src/xtext/BackendConfig';
diff --git a/subprojects/frontend/config/detectDevModeOptions.ts b/subprojects/frontend/config/detectDevModeOptions.ts
index b3696241..665204dc 100644
--- a/subprojects/frontend/config/detectDevModeOptions.ts
+++ b/subprojects/frontend/config/detectDevModeOptions.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { PluginOption, ServerOptions } from 'vite';
 
 import backendConfigVitePlugin, {
diff --git a/subprojects/frontend/config/eslintReport.cjs b/subprojects/frontend/config/eslintReport.cjs
index 5bf6a041..7c4b7bd6 100644
--- a/subprojects/frontend/config/eslintReport.cjs
+++ b/subprojects/frontend/config/eslintReport.cjs
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 const { writeFile } = require('node:fs/promises');
 const path = require('node:path');
 const { Readable } = require('node:stream');
diff --git a/subprojects/frontend/config/fetchPackageMetadata.ts b/subprojects/frontend/config/fetchPackageMetadata.ts
index 50807b03..02e16d57 100644
--- a/subprojects/frontend/config/fetchPackageMetadata.ts
+++ b/subprojects/frontend/config/fetchPackageMetadata.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { readFile } from 'node:fs/promises';
 import path from 'node:path';
 
diff --git a/subprojects/frontend/config/manifest.ts b/subprojects/frontend/config/manifest.ts
index 3cec777c..1822dc7c 100644
--- a/subprojects/frontend/config/manifest.ts
+++ b/subprojects/frontend/config/manifest.ts
@@ -1,10 +1,16 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { ManifestOptions } from 'vite-plugin-pwa';
 
 const manifest: Partial<ManifestOptions> = {
   lang: 'en-US',
   name: 'Refinery',
   short_name: 'Refinery',
-  description: 'An efficient graph sovler for generating well-formed models',
+  description: 'An efficient graph solver for generating well-formed models',
   theme_color: '#f5f5f5',
   display_override: ['window-controls-overlay'],
   display: 'standalone',
diff --git a/subprojects/frontend/config/minifyHTMLVitePlugin.ts b/subprojects/frontend/config/minifyHTMLVitePlugin.ts
index 18336d4d..7c08c488 100644
--- a/subprojects/frontend/config/minifyHTMLVitePlugin.ts
+++ b/subprojects/frontend/config/minifyHTMLVitePlugin.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { minify, type Options as TerserOptions } from 'html-minifier-terser';
 import type { PluginOption } from 'vite';
 
diff --git a/subprojects/frontend/config/preloadFontsVitePlugin.ts b/subprojects/frontend/config/preloadFontsVitePlugin.ts
index bc6f8eaf..5c04477a 100644
--- a/subprojects/frontend/config/preloadFontsVitePlugin.ts
+++ b/subprojects/frontend/config/preloadFontsVitePlugin.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import micromatch from 'micromatch';
 import type { PluginOption } from 'vite';
 
diff --git a/subprojects/frontend/index.html b/subprojects/frontend/index.html
index 8b6814eb..e1d2bf14 100644
--- a/subprojects/frontend/index.html
+++ b/subprojects/frontend/index.html
@@ -1,4 +1,9 @@
 <!DOCTYPE html>
+<!--
+  SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+  SPDX-License-Identifier: EPL-2.0
+-->
 <html lang="en-US">
   <head>
     <meta charset="utf-8">
diff --git a/subprojects/frontend/package.json b/subprojects/frontend/package.json
index e6bcc89e..cd96a574 100644
--- a/subprojects/frontend/package.json
+++ b/subprojects/frontend/package.json
@@ -1,4 +1,9 @@
 {
+  "//": [
+    "SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>",
+    "",
+    "SPDX-License-Identifier: EPL-2.0"
+  ],
   "name": "@refinery/frontend",
   "version": "0.0.0",
   "description": "Web frontend for Refinery",
@@ -16,10 +21,10 @@
     "type": "git",
     "url": "git+https://github.com/graphs4value/refinery.git"
   },
-  "author": "Refinery authors",
+  "author": "The Refinery Authors <https://refinery.tools/>",
   "license": "EPL-2.0",
   "bugs": {
-    "url": "https://github.com/graphs4value/issues"
+    "url": "https://github.com/graphs4value/refinery/issues"
   },
   "homepage": "https://refinery.tools",
   "dependencies": {
diff --git a/subprojects/frontend/prettier.config.cjs b/subprojects/frontend/prettier.config.cjs
index 75f5c54d..6f9ff7ad 100644
--- a/subprojects/frontend/prettier.config.cjs
+++ b/subprojects/frontend/prettier.config.cjs
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 /** @type {import('prettier').Config} */
 module.exports = {
   singleQuote: true,
diff --git a/subprojects/frontend/public/apple-touch-icon.png.license b/subprojects/frontend/public/apple-touch-icon.png.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/apple-touch-icon.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/favicon-96x96.png.license b/subprojects/frontend/public/favicon-96x96.png.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/favicon-96x96.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/favicon.png.license b/subprojects/frontend/public/favicon.png.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/favicon.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/favicon.svg.license b/subprojects/frontend/public/favicon.svg.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/favicon.svg.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/icon-192x192.png.license b/subprojects/frontend/public/icon-192x192.png.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/icon-192x192.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/icon-512x512.png.license b/subprojects/frontend/public/icon-512x512.png.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/icon-512x512.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/icon-any.svg.license b/subprojects/frontend/public/icon-any.svg.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/icon-any.svg.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/mask-icon.svg.license b/subprojects/frontend/public/mask-icon.svg.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/mask-icon.svg.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/robots.txt b/subprojects/frontend/public/robots.txt
index c2a49f4f..e7c73099 100644
--- a/subprojects/frontend/public/robots.txt
+++ b/subprojects/frontend/public/robots.txt
@@ -1,2 +1,6 @@
+# SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+#
+# SPDX-License-Identifier: CC0-1.0
+
 User-agent: *
 Allow: /
diff --git a/subprojects/frontend/src/App.tsx b/subprojects/frontend/src/App.tsx
index cd394345..7f242529 100644
--- a/subprojects/frontend/src/App.tsx
+++ b/subprojects/frontend/src/App.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Box from '@mui/material/Box';
 import CssBaseline from '@mui/material/CssBaseline';
 import { throttle } from 'lodash-es';
diff --git a/subprojects/frontend/src/Loading.tsx b/subprojects/frontend/src/Loading.tsx
index 489563e0..adee4f0e 100644
--- a/subprojects/frontend/src/Loading.tsx
+++ b/subprojects/frontend/src/Loading.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import CircularProgress from '@mui/material/CircularProgress';
 import { styled } from '@mui/material/styles';
 
diff --git a/subprojects/frontend/src/PWAStore.ts b/subprojects/frontend/src/PWAStore.ts
index e9f99e2a..a1b3ffd9 100644
--- a/subprojects/frontend/src/PWAStore.ts
+++ b/subprojects/frontend/src/PWAStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { makeAutoObservable, observable } from 'mobx';
 import ms from 'ms';
 // eslint-disable-next-line import/no-unresolved -- Importing virtual module.
diff --git a/subprojects/frontend/src/Refinery.tsx b/subprojects/frontend/src/Refinery.tsx
index f0162349..b5ff94e1 100644
--- a/subprojects/frontend/src/Refinery.tsx
+++ b/subprojects/frontend/src/Refinery.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Grow from '@mui/material/Grow';
 import Stack from '@mui/material/Stack';
 import { SnackbarProvider } from 'notistack';
diff --git a/subprojects/frontend/src/RootStore.ts b/subprojects/frontend/src/RootStore.ts
index 2e76d66d..b84c0ce0 100644
--- a/subprojects/frontend/src/RootStore.ts
+++ b/subprojects/frontend/src/RootStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { getLogger } from 'loglevel';
 import { makeAutoObservable, runInAction } from 'mobx';
 
diff --git a/subprojects/frontend/src/RootStoreProvider.tsx b/subprojects/frontend/src/RootStoreProvider.tsx
index 2c11a0f9..7cb89af1 100644
--- a/subprojects/frontend/src/RootStoreProvider.tsx
+++ b/subprojects/frontend/src/RootStoreProvider.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { type ReactNode, createContext, useContext } from 'react';
 
 import type RootStore from './RootStore';
diff --git a/subprojects/frontend/src/ToggleDarkModeButton.tsx b/subprojects/frontend/src/ToggleDarkModeButton.tsx
index 59714f20..7a835e61 100644
--- a/subprojects/frontend/src/ToggleDarkModeButton.tsx
+++ b/subprojects/frontend/src/ToggleDarkModeButton.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import DarkModeIcon from '@mui/icons-material/DarkMode';
 import LightModeIcon from '@mui/icons-material/LightMode';
 import IconButton from '@mui/material/IconButton';
diff --git a/subprojects/frontend/src/TopBar.tsx b/subprojects/frontend/src/TopBar.tsx
index 5a825512..f2542b14 100644
--- a/subprojects/frontend/src/TopBar.tsx
+++ b/subprojects/frontend/src/TopBar.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import GitHubIcon from '@mui/icons-material/GitHub';
 import AppBar from '@mui/material/AppBar';
 import Button from '@mui/material/Button';
diff --git a/subprojects/frontend/src/UpdateNotification.tsx b/subprojects/frontend/src/UpdateNotification.tsx
index 5c8c2d01..d86c0703 100644
--- a/subprojects/frontend/src/UpdateNotification.tsx
+++ b/subprojects/frontend/src/UpdateNotification.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Button from '@mui/material/Button';
 import { observer } from 'mobx-react-lite';
 import { useEffect } from 'react';
diff --git a/subprojects/frontend/src/WindowControlsOverlayColor.tsx b/subprojects/frontend/src/WindowControlsOverlayColor.tsx
index 14eda566..cfa468ea 100644
--- a/subprojects/frontend/src/WindowControlsOverlayColor.tsx
+++ b/subprojects/frontend/src/WindowControlsOverlayColor.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { useTheme } from '@mui/material/styles';
 import { useEffect } from 'react';
 
diff --git a/subprojects/frontend/src/editor/AnimatedButton.tsx b/subprojects/frontend/src/editor/AnimatedButton.tsx
index f75d4617..dbbda618 100644
--- a/subprojects/frontend/src/editor/AnimatedButton.tsx
+++ b/subprojects/frontend/src/editor/AnimatedButton.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Box from '@mui/material/Box';
 import Button from '@mui/material/Button';
 import { styled, type SxProps, type Theme } from '@mui/material/styles';
diff --git a/subprojects/frontend/src/editor/ConnectButton.tsx b/subprojects/frontend/src/editor/ConnectButton.tsx
index e2d251f3..eed6fbc7 100644
--- a/subprojects/frontend/src/editor/ConnectButton.tsx
+++ b/subprojects/frontend/src/editor/ConnectButton.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import CloudIcon from '@mui/icons-material/Cloud';
 import CloudOffIcon from '@mui/icons-material/CloudOff';
 import SyncIcon from '@mui/icons-material/Sync';
diff --git a/subprojects/frontend/src/editor/ConnectionStatusNotification.tsx b/subprojects/frontend/src/editor/ConnectionStatusNotification.tsx
index 9b27f45c..b7b962ab 100644
--- a/subprojects/frontend/src/editor/ConnectionStatusNotification.tsx
+++ b/subprojects/frontend/src/editor/ConnectionStatusNotification.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Button from '@mui/material/Button';
 import { observer } from 'mobx-react-lite';
 import { useEffect } from 'react';
diff --git a/subprojects/frontend/src/editor/DiagnosticValue.ts b/subprojects/frontend/src/editor/DiagnosticValue.ts
index b4e0b165..20478262 100644
--- a/subprojects/frontend/src/editor/DiagnosticValue.ts
+++ b/subprojects/frontend/src/editor/DiagnosticValue.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { Diagnostic } from '@codemirror/lint';
 import { RangeValue } from '@codemirror/state';
 
diff --git a/subprojects/frontend/src/editor/EditorArea.tsx b/subprojects/frontend/src/editor/EditorArea.tsx
index cfb988b2..905fa2ec 100644
--- a/subprojects/frontend/src/editor/EditorArea.tsx
+++ b/subprojects/frontend/src/editor/EditorArea.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Box from '@mui/material/Box';
 import { useTheme } from '@mui/material/styles';
 import { observer } from 'mobx-react-lite';
diff --git a/subprojects/frontend/src/editor/EditorButtons.tsx b/subprojects/frontend/src/editor/EditorButtons.tsx
index 53b06e23..9b187e5c 100644
--- a/subprojects/frontend/src/editor/EditorButtons.tsx
+++ b/subprojects/frontend/src/editor/EditorButtons.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { Diagnostic } from '@codemirror/lint';
 import CheckIcon from '@mui/icons-material/Check';
 import ErrorIcon from '@mui/icons-material/Error';
diff --git a/subprojects/frontend/src/editor/EditorPane.tsx b/subprojects/frontend/src/editor/EditorPane.tsx
index f7f8241a..87f408fe 100644
--- a/subprojects/frontend/src/editor/EditorPane.tsx
+++ b/subprojects/frontend/src/editor/EditorPane.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Box from '@mui/material/Box';
 import Skeleton from '@mui/material/Skeleton';
 import Stack from '@mui/material/Stack';
diff --git a/subprojects/frontend/src/editor/EditorStore.ts b/subprojects/frontend/src/editor/EditorStore.ts
index 0a0d885d..b98f085e 100644
--- a/subprojects/frontend/src/editor/EditorStore.ts
+++ b/subprojects/frontend/src/editor/EditorStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type {
   CompletionContext,
   CompletionResult,
diff --git a/subprojects/frontend/src/editor/EditorTheme.ts b/subprojects/frontend/src/editor/EditorTheme.ts
index 01b65a7e..023a8f73 100644
--- a/subprojects/frontend/src/editor/EditorTheme.ts
+++ b/subprojects/frontend/src/editor/EditorTheme.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import errorSVG from '@material-icons/svg/svg/error/baseline.svg?raw';
 import expandMoreSVG from '@material-icons/svg/svg/expand_more/baseline.svg?raw';
 import infoSVG from '@material-icons/svg/svg/info/baseline.svg?raw';
diff --git a/subprojects/frontend/src/editor/GenerateButton.tsx b/subprojects/frontend/src/editor/GenerateButton.tsx
index 2036fc28..3837ef8e 100644
--- a/subprojects/frontend/src/editor/GenerateButton.tsx
+++ b/subprojects/frontend/src/editor/GenerateButton.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import DangerousOutlinedIcon from '@mui/icons-material/DangerousOutlined';
 import PlayArrowIcon from '@mui/icons-material/PlayArrow';
 import Button from '@mui/material/Button';
diff --git a/subprojects/frontend/src/editor/LintPanelStore.ts b/subprojects/frontend/src/editor/LintPanelStore.ts
index 502f9c59..f81587fa 100644
--- a/subprojects/frontend/src/editor/LintPanelStore.ts
+++ b/subprojects/frontend/src/editor/LintPanelStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { closeLintPanel, openLintPanel } from '@codemirror/lint';
 
 import type EditorStore from './EditorStore';
diff --git a/subprojects/frontend/src/editor/PanelStore.ts b/subprojects/frontend/src/editor/PanelStore.ts
index 4f827280..25ef8b6c 100644
--- a/subprojects/frontend/src/editor/PanelStore.ts
+++ b/subprojects/frontend/src/editor/PanelStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { Command } from '@codemirror/view';
 import { action, makeObservable, observable } from 'mobx';
 
diff --git a/subprojects/frontend/src/editor/SearchPanel.ts b/subprojects/frontend/src/editor/SearchPanel.ts
index c9df41b7..b63d5eed 100644
--- a/subprojects/frontend/src/editor/SearchPanel.ts
+++ b/subprojects/frontend/src/editor/SearchPanel.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   type EditorView,
   type Panel,
diff --git a/subprojects/frontend/src/editor/SearchPanelPortal.tsx b/subprojects/frontend/src/editor/SearchPanelPortal.tsx
index 5cf1c90e..b4b07c74 100644
--- a/subprojects/frontend/src/editor/SearchPanelPortal.tsx
+++ b/subprojects/frontend/src/editor/SearchPanelPortal.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Portal from '@mui/material/Portal';
 import { observer } from 'mobx-react-lite';
 
diff --git a/subprojects/frontend/src/editor/SearchPanelStore.ts b/subprojects/frontend/src/editor/SearchPanelStore.ts
index 65d595a8..6a97baf1 100644
--- a/subprojects/frontend/src/editor/SearchPanelStore.ts
+++ b/subprojects/frontend/src/editor/SearchPanelStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   closeSearchPanel,
   findNext,
diff --git a/subprojects/frontend/src/editor/SearchToolbar.tsx b/subprojects/frontend/src/editor/SearchToolbar.tsx
index 54f3dba7..4ae7e893 100644
--- a/subprojects/frontend/src/editor/SearchToolbar.tsx
+++ b/subprojects/frontend/src/editor/SearchToolbar.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import CloseIcon from '@mui/icons-material/Close';
 import FindReplaceIcon from '@mui/icons-material/FindReplace';
 import KeyboardArrowDownIcon from '@mui/icons-material/KeyboardArrowDown';
diff --git a/subprojects/frontend/src/editor/createEditorState.ts b/subprojects/frontend/src/editor/createEditorState.ts
index ce1efa4f..4a8e9832 100644
--- a/subprojects/frontend/src/editor/createEditorState.ts
+++ b/subprojects/frontend/src/editor/createEditorState.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   closeBrackets,
   closeBracketsKeymap,
diff --git a/subprojects/frontend/src/editor/defineDecorationSetExtension.ts b/subprojects/frontend/src/editor/defineDecorationSetExtension.ts
index d9c7bc7d..0887c92e 100644
--- a/subprojects/frontend/src/editor/defineDecorationSetExtension.ts
+++ b/subprojects/frontend/src/editor/defineDecorationSetExtension.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { StateEffect, StateField, TransactionSpec } from '@codemirror/state';
 import { EditorView, Decoration, DecorationSet } from '@codemirror/view';
 
diff --git a/subprojects/frontend/src/editor/exposeDiagnostics.ts b/subprojects/frontend/src/editor/exposeDiagnostics.ts
index 82f24c93..c4dcbb87 100644
--- a/subprojects/frontend/src/editor/exposeDiagnostics.ts
+++ b/subprojects/frontend/src/editor/exposeDiagnostics.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { setDiagnosticsEffect } from '@codemirror/lint';
 import {
   StateField,
diff --git a/subprojects/frontend/src/editor/findOccurrences.ts b/subprojects/frontend/src/editor/findOccurrences.ts
index 08c078c2..00dffc96 100644
--- a/subprojects/frontend/src/editor/findOccurrences.ts
+++ b/subprojects/frontend/src/editor/findOccurrences.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   type Range,
   RangeSet,
diff --git a/subprojects/frontend/src/editor/indentationMarkerViewPlugin.ts b/subprojects/frontend/src/editor/indentationMarkerViewPlugin.ts
index 730fa6e3..57a946d5 100644
--- a/subprojects/frontend/src/editor/indentationMarkerViewPlugin.ts
+++ b/subprojects/frontend/src/editor/indentationMarkerViewPlugin.ts
@@ -1,10 +1,16 @@
+/*
+ * Copyright (c) 2022 Replit
+ * Copyright (c) 2022-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: MIT OR EPL-2.0
+ */
+
 /**
  * @file CodeMirror plugin to highlight indentation
  *
  * This file is based on the
  * [@replit/codemirror-indentation-markers](https://github.com/replit/codemirror-indentation-markers)
- * package, which is available under the
- * [MIT License](https://github.com/replit/codemirror-indentation-markers/blob/543cc508ca5cef5d8350af23973eb1425e31525c/LICENSE).
+ * package.
  *
  * The highlighting heuristics were adjusted to make them more suitable
  * for logic programming.
diff --git a/subprojects/frontend/src/editor/scrollbarViewPlugin.ts b/subprojects/frontend/src/editor/scrollbarViewPlugin.ts
index f44034fd..878d369d 100644
--- a/subprojects/frontend/src/editor/scrollbarViewPlugin.ts
+++ b/subprojects/frontend/src/editor/scrollbarViewPlugin.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { EditorSelection } from '@codemirror/state';
 import {
   type EditorView,
diff --git a/subprojects/frontend/src/editor/semanticHighlighting.ts b/subprojects/frontend/src/editor/semanticHighlighting.ts
index 2c1bd67d..1f2e564c 100644
--- a/subprojects/frontend/src/editor/semanticHighlighting.ts
+++ b/subprojects/frontend/src/editor/semanticHighlighting.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { RangeSet, type TransactionSpec } from '@codemirror/state';
 import { Decoration } from '@codemirror/view';
 
diff --git a/subprojects/frontend/src/index.tsx b/subprojects/frontend/src/index.tsx
index 29b2b196..cb11e6c3 100644
--- a/subprojects/frontend/src/index.tsx
+++ b/subprojects/frontend/src/index.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { configure } from 'mobx';
 import { type Root, createRoot } from 'react-dom/client';
 
diff --git a/subprojects/frontend/src/language/folding.ts b/subprojects/frontend/src/language/folding.ts
index 4dabfa27..b4d4ca22 100644
--- a/subprojects/frontend/src/language/folding.ts
+++ b/subprojects/frontend/src/language/folding.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { EditorState } from '@codemirror/state';
 import type { SyntaxNode } from '@lezer/common';
 
diff --git a/subprojects/frontend/src/language/indentation.ts b/subprojects/frontend/src/language/indentation.ts
index a0f7032d..8446d7fa 100644
--- a/subprojects/frontend/src/language/indentation.ts
+++ b/subprojects/frontend/src/language/indentation.ts
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018-2021 by Marijn Haverbeke <marijnh@gmail.com> and others
+ * Copyright (C) 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: MIT OR EPL-2.0
+ */
+
 import type { TreeIndentContext } from '@codemirror/language';
 
 /**
diff --git a/subprojects/frontend/src/language/problem.grammar b/subprojects/frontend/src/language/problem.grammar
index 704badab..a7b1fb0a 100644
--- a/subprojects/frontend/src/language/problem.grammar
+++ b/subprojects/frontend/src/language/problem.grammar
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 @detectDelim
 
 @external prop implicitCompletion from './props'
diff --git a/subprojects/frontend/src/language/problemLanguageSupport.ts b/subprojects/frontend/src/language/problemLanguageSupport.ts
index c3ae7ed9..2121e05f 100644
--- a/subprojects/frontend/src/language/problemLanguageSupport.ts
+++ b/subprojects/frontend/src/language/problemLanguageSupport.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   foldInside,
   foldNodeProp,
diff --git a/subprojects/frontend/src/language/props.ts b/subprojects/frontend/src/language/props.ts
index 65392e75..aa67145a 100644
--- a/subprojects/frontend/src/language/props.ts
+++ b/subprojects/frontend/src/language/props.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 /* eslint-disable import/prefer-default-export -- Lezer needs non-default exports */
 
 import { NodeProp } from '@lezer/common';
diff --git a/subprojects/frontend/src/theme/ThemeProvider.tsx b/subprojects/frontend/src/theme/ThemeProvider.tsx
index ff97d524..740e9562 100644
--- a/subprojects/frontend/src/theme/ThemeProvider.tsx
+++ b/subprojects/frontend/src/theme/ThemeProvider.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   alpha,
   createTheme,
diff --git a/subprojects/frontend/src/theme/ThemeStore.ts b/subprojects/frontend/src/theme/ThemeStore.ts
index e09d8d99..7c657449 100644
--- a/subprojects/frontend/src/theme/ThemeStore.ts
+++ b/subprojects/frontend/src/theme/ThemeStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { makeAutoObservable } from 'mobx';
 
 export enum ThemePreference {
diff --git a/subprojects/frontend/src/utils/CancelledError.ts b/subprojects/frontend/src/utils/CancelledError.ts
index ee23676f..96b67af7 100644
--- a/subprojects/frontend/src/utils/CancelledError.ts
+++ b/subprojects/frontend/src/utils/CancelledError.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 export default class CancelledError extends Error {
   constructor(message = 'Operation cancelled') {
     super(message);
diff --git a/subprojects/frontend/src/utils/PendingTask.ts b/subprojects/frontend/src/utils/PendingTask.ts
index d0b24c1f..80d1a346 100644
--- a/subprojects/frontend/src/utils/PendingTask.ts
+++ b/subprojects/frontend/src/utils/PendingTask.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import TimeoutError from './TimeoutError';
 import getLogger from './getLogger';
 
diff --git a/subprojects/frontend/src/utils/PriorityMutex.ts b/subprojects/frontend/src/utils/PriorityMutex.ts
index 78736141..c1215c76 100644
--- a/subprojects/frontend/src/utils/PriorityMutex.ts
+++ b/subprojects/frontend/src/utils/PriorityMutex.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import CancelledError from './CancelledError';
 import PendingTask from './PendingTask';
 import getLogger from './getLogger';
diff --git a/subprojects/frontend/src/utils/TimeoutError.ts b/subprojects/frontend/src/utils/TimeoutError.ts
index eb800f40..21365502 100644
--- a/subprojects/frontend/src/utils/TimeoutError.ts
+++ b/subprojects/frontend/src/utils/TimeoutError.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 export default class TimeoutError extends Error {
   constructor() {
     super('Operation timed out');
diff --git a/subprojects/frontend/src/utils/getLogger.ts b/subprojects/frontend/src/utils/getLogger.ts
index 301fd76d..09b0b17f 100644
--- a/subprojects/frontend/src/utils/getLogger.ts
+++ b/subprojects/frontend/src/utils/getLogger.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import styles, { type CSPair } from 'ansi-styles';
 import log from 'loglevel';
 import prefix from 'loglevel-plugin-prefix';
diff --git a/subprojects/frontend/src/utils/useDelayedSnackbar.ts b/subprojects/frontend/src/utils/useDelayedSnackbar.ts
index 03ad6caa..3d6df3e3 100644
--- a/subprojects/frontend/src/utils/useDelayedSnackbar.ts
+++ b/subprojects/frontend/src/utils/useDelayedSnackbar.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   useSnackbar,
   type SnackbarKey,
diff --git a/subprojects/frontend/src/xtext/BackendConfig.ts b/subprojects/frontend/src/xtext/BackendConfig.ts
index 41737c0b..4c7eac5f 100644
--- a/subprojects/frontend/src/xtext/BackendConfig.ts
+++ b/subprojects/frontend/src/xtext/BackendConfig.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 /* eslint-disable @typescript-eslint/no-redeclare -- Declare types with their companion objects */
 
 import { z } from 'zod';
diff --git a/subprojects/frontend/src/xtext/ContentAssistService.ts b/subprojects/frontend/src/xtext/ContentAssistService.ts
index 78f61c06..fd30c4f9 100644
--- a/subprojects/frontend/src/xtext/ContentAssistService.ts
+++ b/subprojects/frontend/src/xtext/ContentAssistService.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type {
   Completion,
   CompletionContext,
diff --git a/subprojects/frontend/src/xtext/HighlightingService.ts b/subprojects/frontend/src/xtext/HighlightingService.ts
index a126ee40..447f1401 100644
--- a/subprojects/frontend/src/xtext/HighlightingService.ts
+++ b/subprojects/frontend/src/xtext/HighlightingService.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type EditorStore from '../editor/EditorStore';
 import type { IHighlightRange } from '../editor/semanticHighlighting';
 
diff --git a/subprojects/frontend/src/xtext/OccurrencesService.ts b/subprojects/frontend/src/xtext/OccurrencesService.ts
index fc72ead2..c9c6c699 100644
--- a/subprojects/frontend/src/xtext/OccurrencesService.ts
+++ b/subprojects/frontend/src/xtext/OccurrencesService.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { Transaction } from '@codemirror/state';
 import { debounce } from 'lodash-es';
 import ms from 'ms';
diff --git a/subprojects/frontend/src/xtext/UpdateService.ts b/subprojects/frontend/src/xtext/UpdateService.ts
index 63e28652..ee5ebde2 100644
--- a/subprojects/frontend/src/xtext/UpdateService.ts
+++ b/subprojects/frontend/src/xtext/UpdateService.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { ChangeDesc, Transaction } from '@codemirror/state';
 import { debounce } from 'lodash-es';
 import { nanoid } from 'nanoid';
diff --git a/subprojects/frontend/src/xtext/UpdateStateTracker.ts b/subprojects/frontend/src/xtext/UpdateStateTracker.ts
index 5d4ce49e..4ce93ed6 100644
--- a/subprojects/frontend/src/xtext/UpdateStateTracker.ts
+++ b/subprojects/frontend/src/xtext/UpdateStateTracker.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   type ChangeDesc,
   ChangeSet,
diff --git a/subprojects/frontend/src/xtext/ValidationService.ts b/subprojects/frontend/src/xtext/ValidationService.ts
index 72414590..64fb63eb 100644
--- a/subprojects/frontend/src/xtext/ValidationService.ts
+++ b/subprojects/frontend/src/xtext/ValidationService.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { Diagnostic } from '@codemirror/lint';
 
 import type EditorStore from '../editor/EditorStore';
diff --git a/subprojects/frontend/src/xtext/XtextClient.ts b/subprojects/frontend/src/xtext/XtextClient.ts
index 14fb2430..e8181af0 100644
--- a/subprojects/frontend/src/xtext/XtextClient.ts
+++ b/subprojects/frontend/src/xtext/XtextClient.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type {
   CompletionContext,
   CompletionResult,
diff --git a/subprojects/frontend/src/xtext/XtextWebSocketClient.ts b/subprojects/frontend/src/xtext/XtextWebSocketClient.ts
index 6b734546..6bb7eec8 100644
--- a/subprojects/frontend/src/xtext/XtextWebSocketClient.ts
+++ b/subprojects/frontend/src/xtext/XtextWebSocketClient.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { createAtom, makeAutoObservable, observable } from 'mobx';
 import ms from 'ms';
 import { nanoid } from 'nanoid';
diff --git a/subprojects/frontend/src/xtext/fetchBackendConfig.ts b/subprojects/frontend/src/xtext/fetchBackendConfig.ts
index 15e976d8..71ff2e63 100644
--- a/subprojects/frontend/src/xtext/fetchBackendConfig.ts
+++ b/subprojects/frontend/src/xtext/fetchBackendConfig.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import BackendConfig, { ENDPOINT } from './BackendConfig';
 
 export default async function fetchBackendConfig(): Promise<BackendConfig> {
diff --git a/subprojects/frontend/src/xtext/webSocketMachine.ts b/subprojects/frontend/src/xtext/webSocketMachine.ts
index fc53fef3..2fb1f52f 100644
--- a/subprojects/frontend/src/xtext/webSocketMachine.ts
+++ b/subprojects/frontend/src/xtext/webSocketMachine.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import ms from 'ms';
 import { actions, assign, createMachine } from 'xstate';
 
diff --git a/subprojects/frontend/src/xtext/xtextMessages.ts b/subprojects/frontend/src/xtext/xtextMessages.ts
index ec7a2a31..bbbff064 100644
--- a/subprojects/frontend/src/xtext/xtextMessages.ts
+++ b/subprojects/frontend/src/xtext/xtextMessages.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 /* eslint-disable @typescript-eslint/no-redeclare -- Declare types with their companion objects */
 
 import { z } from 'zod';
diff --git a/subprojects/frontend/src/xtext/xtextServiceResults.ts b/subprojects/frontend/src/xtext/xtextServiceResults.ts
index e93c6714..d3b467ad 100644
--- a/subprojects/frontend/src/xtext/xtextServiceResults.ts
+++ b/subprojects/frontend/src/xtext/xtextServiceResults.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 /* eslint-disable @typescript-eslint/no-redeclare -- Declare types with their companion objects */
 
 import { z } from 'zod';
diff --git a/subprojects/frontend/tsconfig.base.json b/subprojects/frontend/tsconfig.base.json
index 30e707ae..58a2a6f2 100644
--- a/subprojects/frontend/tsconfig.base.json
+++ b/subprojects/frontend/tsconfig.base.json
@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) Microsoft Corporation.
+ * Copyright (c) 2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: MIT OR EPL-2.0
+ *
+ * This file is based on
+ * https://github.com/tsconfig/bases/blob/7db25a41bc5a9c0f66d91f6f3aa28438afcb2f18/bases/strictest.json
+ * but we moved it inside the project for better tooling support.
+ */
 {
   "compilerOptions": {
     "strict": true,
@@ -11,6 +21,8 @@
     "noUncheckedIndexedAccess": true,
     "noUnusedLocals": true,
     "noUnusedParameters": true,
+    // "verbatimModuleSyntax" is incompatible with `import` syntax in modules
+    // with CommonJS import resolution, so we use "isolatedModules" only.
     "verbatimModuleSyntax": false,
     "isolatedModules": true,
     "checkJs": true,
@@ -18,6 +30,7 @@
     "skipLibCheck": true,
     "forceConsistentCasingInFileNames": true,
     "useDefineForClassFields": true,
+    // Project-specific configuration below.
     "module": "es2022",
     "moduleResolution": "node",
     "incremental": true,
diff --git a/subprojects/frontend/tsconfig.json b/subprojects/frontend/tsconfig.json
index 35d0d164..06f6d8fe 100644
--- a/subprojects/frontend/tsconfig.json
+++ b/subprojects/frontend/tsconfig.json
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 {
   "extends": "./tsconfig.base.json",
   "compilerOptions": {
diff --git a/subprojects/frontend/tsconfig.node.json b/subprojects/frontend/tsconfig.node.json
index cfa2da13..47feaf97 100644
--- a/subprojects/frontend/tsconfig.node.json
+++ b/subprojects/frontend/tsconfig.node.json
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 {
   "extends": "./tsconfig.base.json",
   "compilerOptions": {
diff --git a/subprojects/frontend/tsconfig.shared.json b/subprojects/frontend/tsconfig.shared.json
index f7b56a1d..154fe122 100644
--- a/subprojects/frontend/tsconfig.shared.json
+++ b/subprojects/frontend/tsconfig.shared.json
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 {
   "extends": "./tsconfig.base.json",
   "compilerOptions": {
@@ -6,6 +11,6 @@
     "types": [],
   },
   "include": [
-    "src/xtext/BackendConfig.ts",
+    "src/xtext/BackendConfig.ts"
   ]
 }
diff --git a/subprojects/frontend/types/ImportMeta.d.ts b/subprojects/frontend/types/ImportMeta.d.ts
index c32b48f5..f5a32ef1 100644
--- a/subprojects/frontend/types/ImportMeta.d.ts
+++ b/subprojects/frontend/types/ImportMeta.d.ts
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2019-present, Yuxi (Evan) You and Vite contributors
+ * Copyright (c) 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: MIT OR EPL-2.0
+ */
+
 interface ImportMeta {
   env: {
     BASE_URL: string;
diff --git a/subprojects/frontend/types/grammar.d.ts b/subprojects/frontend/types/grammar.d.ts
index 1480085b..e7a7eebf 100644
--- a/subprojects/frontend/types/grammar.d.ts
+++ b/subprojects/frontend/types/grammar.d.ts
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 by Marijn Haverbeke <marijn@haverbeke.berlin> and others
+ * Copyright (C) 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: MIT OR EPL-2.0
+ */
+
 declare module '*.grammar' {
   import type { LRParser } from '@lezer/lr';
 
diff --git a/subprojects/frontend/types/node/@lezer-generator-rollup.d.ts b/subprojects/frontend/types/node/@lezer-generator-rollup.d.ts
index 9c1ff03e..4ef9f4e3 100644
--- a/subprojects/frontend/types/node/@lezer-generator-rollup.d.ts
+++ b/subprojects/frontend/types/node/@lezer-generator-rollup.d.ts
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 by Marijn Haverbeke <marijn@haverbeke.berlin> and others
+ * Copyright (C) 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: MIT OR EPL-2.0
+ */
+
 // We have to explicitly redeclare the type of the `./rollup` ESM export of `@lezer/generator`,
 // because TypeScript can't find it on its own even with `"moduleResolution": "Node16"`.
 declare module '@lezer/generator/rollup' {
diff --git a/subprojects/frontend/types/windowControlsOverlay.d.ts b/subprojects/frontend/types/windowControlsOverlay.d.ts
index d8f3182f..2513d620 100644
--- a/subprojects/frontend/types/windowControlsOverlay.d.ts
+++ b/subprojects/frontend/types/windowControlsOverlay.d.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 interface WindowControlsOverlayGeometryChangeEvent extends Event {
   titlebarAreaRect: DOMRect;
 
diff --git a/subprojects/frontend/vite.config.ts b/subprojects/frontend/vite.config.ts
index cd9993cc..9e08ccc4 100644
--- a/subprojects/frontend/vite.config.ts
+++ b/subprojects/frontend/vite.config.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import path from 'node:path';
 import { fileURLToPath } from 'node:url';
 
diff --git a/subprojects/language-ide/build.gradle.kts b/subprojects/language-ide/build.gradle.kts
index f996c00d..ff8630f9 100644
--- a/subprojects/language-ide/build.gradle.kts
+++ b/subprojects/language-ide/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-library")
         id("tools.refinery.gradle.xtext-generated")
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeModule.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeModule.java
index fb620065..122fe874 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeModule.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeModule.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.ide;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeSetup.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeSetup.java
index 5b88d41f..9d77e022 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeSetup.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeSetup.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.ide;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/FuzzyMatcher.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/FuzzyMatcher.java
index fe722ca1..4511223b 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/FuzzyMatcher.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/FuzzyMatcher.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.ide.contentassist;
 
 import org.eclipse.xtext.ide.editor.contentassist.IPrefixMatcher;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/ProblemCrossrefProposalProvider.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/ProblemCrossrefProposalProvider.java
index 8f04ed00..e194ee31 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/ProblemCrossrefProposalProvider.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/ProblemCrossrefProposalProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.ide.contentassist;
 
 import java.util.Objects;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingPartialProblemContentAssistParser.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingPartialProblemContentAssistParser.java
index 3ece6f67..146bd8da 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingPartialProblemContentAssistParser.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingPartialProblemContentAssistParser.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.ide.contentassist;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingProblemParser.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingProblemParser.java
index 80dfee5c..f906d881 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingProblemParser.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingProblemParser.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.ide.contentassist;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/antlr/ProblemTokenSource.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/antlr/ProblemTokenSource.java
index c6c7f41f..fdc17c4f 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/antlr/ProblemTokenSource.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/antlr/ProblemTokenSource.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.29.0.M2
  */
 package tools.refinery.language.ide.contentassist.antlr;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/syntaxcoloring/ProblemSemanticHighlightingCalculator.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/syntaxcoloring/ProblemSemanticHighlightingCalculator.java
index 7703e4e3..e8f97d51 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/syntaxcoloring/ProblemSemanticHighlightingCalculator.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/syntaxcoloring/ProblemSemanticHighlightingCalculator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.ide.syntaxcoloring;
 
 import com.google.common.collect.ImmutableList;
diff --git a/subprojects/language-model/META-INF/MANIFEST.MF.license b/subprojects/language-model/META-INF/MANIFEST.MF.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/language-model/META-INF/MANIFEST.MF.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/language-model/build.gradle.kts b/subprojects/language-model/build.gradle.kts
index 12b6bc13..4f15e5e6 100644
--- a/subprojects/language-model/build.gradle.kts
+++ b/subprojects/language-model/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import tools.refinery.gradle.utils.SonarPropertiesUtils
 
 plugins {
diff --git a/subprojects/language-model/build.properties b/subprojects/language-model/build.properties
index 65dfc7c4..9b9859ff 100644
--- a/subprojects/language-model/build.properties
+++ b/subprojects/language-model/build.properties
@@ -1,4 +1,6 @@
+# SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
 #
+# SPDX-License-Identifier: EPL-2.0
 
 bin.includes = .,\
                src/main/resources/model/,\
diff --git a/subprojects/language-model/plugin.properties b/subprojects/language-model/plugin.properties
index c4fb7e23..c410feb7 100644
--- a/subprojects/language-model/plugin.properties
+++ b/subprojects/language-model/plugin.properties
@@ -1,4 +1,6 @@
+# SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
 #
+# SPDX-License-Identifier: EPL-2.0
 
 pluginName = tools.refinery.language.model
 providerName = refinery.tools
diff --git a/subprojects/language-model/plugin.xml b/subprojects/language-model/plugin.xml
index 4ca005a8..ef1e21f4 100644
--- a/subprojects/language-model/plugin.xml
+++ b/subprojects/language-model/plugin.xml
@@ -2,6 +2,9 @@
 <?eclipse version="3.0"?>
 
 <!--
+  SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+  SPDX-License-Identifier: EPL-2.0
 -->
 
 <plugin>
diff --git a/subprojects/language-model/problem.aird.license b/subprojects/language-model/problem.aird.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/language-model/problem.aird.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/language-model/src/main/java/tools/refinery/language/model/GenerateProblemModel.mwe2 b/subprojects/language-model/src/main/java/tools/refinery/language/model/GenerateProblemModel.mwe2
index 15198d69..074b6b71 100644
--- a/subprojects/language-model/src/main/java/tools/refinery/language/model/GenerateProblemModel.mwe2
+++ b/subprojects/language-model/src/main/java/tools/refinery/language/model/GenerateProblemModel.mwe2
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 module tools.refinery.language.model.GenerateProblemModel
 
 Workflow {
diff --git a/subprojects/language-model/src/main/resources/model/problem.ecore.license b/subprojects/language-model/src/main/resources/model/problem.ecore.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/language-model/src/main/resources/model/problem.ecore.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/language-model/src/main/resources/model/problem.genmodel.license b/subprojects/language-model/src/main/resources/model/problem.genmodel.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/language-model/src/main/resources/model/problem.genmodel.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/language-semantics/build.gradle.kts b/subprojects/language-semantics/build.gradle.kts
index bf016dc9..38cd9e0d 100644
--- a/subprojects/language-semantics/build.gradle.kts
+++ b/subprojects/language-semantics/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-library")
 }
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/ModelInitializer.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/ModelInitializer.java
index a6712a89..41b4fcb0 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/ModelInitializer.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/ModelInitializer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTree.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTree.java
index 55edee6d..c1afecf9 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTree.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTree.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.internal;
 
 import org.eclipse.collections.api.factory.primitive.IntObjectMaps;
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeCursor.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeCursor.java
index fdf8e452..9a1e15a3 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeCursor.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.internal;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeNode.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeNode.java
index b81ea3fe..3c54e3c5 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeNode.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeNode.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.internal;
 
 import org.eclipse.collections.api.LazyIntIterable;
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeValue.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeValue.java
index 495a53dd..915ae2bf 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeValue.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeValue.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.internal;
 
 import tools.refinery.store.representation.TruthValue;
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/IntermediateNode.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/IntermediateNode.java
index c4200509..e6f01d48 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/IntermediateNode.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/IntermediateNode.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.internal;
 
 import org.eclipse.collections.api.LazyIntIterable;
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/TerminalNode.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/TerminalNode.java
index 4af836ff..ce49aa62 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/TerminalNode.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/TerminalNode.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.internal;
 
 import org.eclipse.collections.api.LazyIntIterable;
diff --git a/subprojects/language-semantics/src/test/java/tools/refinery/language/semantics/model/tests/DecisionTreeTests.java b/subprojects/language-semantics/src/test/java/tools/refinery/language/semantics/model/tests/DecisionTreeTests.java
index 4630bf53..b3fcbabb 100644
--- a/subprojects/language-semantics/src/test/java/tools/refinery/language/semantics/model/tests/DecisionTreeTests.java
+++ b/subprojects/language-semantics/src/test/java/tools/refinery/language/semantics/model/tests/DecisionTreeTests.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.tests;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/language-web/build.gradle.kts b/subprojects/language-web/build.gradle.kts
index d2a39d56..e1d250ec 100644
--- a/subprojects/language-web/build.gradle.kts
+++ b/subprojects/language-web/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-application")
         id("tools.refinery.gradle.xtext-generated")
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/CacheControlFilter.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/CacheControlFilter.java
index fd2af1b2..53f78c3c 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/CacheControlFilter.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/CacheControlFilter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web;
 
 import jakarta.servlet.*;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebModule.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebModule.java
index 706413a9..12e39e55 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebModule.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebModule.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.web;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSetup.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSetup.java
index 4738bc80..53a394d8 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSetup.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSetup.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.web;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSocketServlet.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSocketServlet.java
index df67b521..7b48cde8 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSocketServlet.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSocketServlet.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web;
 
 import org.eclipse.xtext.util.DisposableRegistry;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/SecurityHeadersFilter.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/SecurityHeadersFilter.java
index c41db799..7b094fde 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/SecurityHeadersFilter.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/SecurityHeadersFilter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web;
 
 import jakarta.servlet.*;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/ServerLauncher.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/ServerLauncher.java
index d40e50af..1924f661 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/ServerLauncher.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/ServerLauncher.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.web;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/VirtualThreadUtils.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/VirtualThreadUtils.java
index a055e755..27802e0c 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/VirtualThreadUtils.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/VirtualThreadUtils.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web;
 
 import org.eclipse.jetty.server.Server;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfig.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfig.java
index 2e864998..807b789c 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfig.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfig.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.config;
 
 import com.google.gson.annotations.SerializedName;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfigServlet.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfigServlet.java
index 47e8de7c..a2f04e34 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfigServlet.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfigServlet.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.config;
 
 import com.google.gson.Gson;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/occurrences/ProblemOccurrencesService.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/occurrences/ProblemOccurrencesService.java
index d32bbb54..34117384 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/occurrences/ProblemOccurrencesService.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/occurrences/ProblemOccurrencesService.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.occurrences;
 
 import org.eclipse.emf.ecore.EObject;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/VirtualThreadExecutorServiceProvider.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/VirtualThreadExecutorServiceProvider.java
index abbcbd53..699a09ab 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/VirtualThreadExecutorServiceProvider.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/VirtualThreadExecutorServiceProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext;
 
 import org.eclipse.xtext.ide.ExecutorServiceProvider;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/PongResult.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/PongResult.java
index fe510f51..27b2e04e 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/PongResult.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/PongResult.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server;
 
 import java.util.Objects;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandler.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandler.java
index 2a85afe3..3069c2dd 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandler.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandler.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server;
 
 import tools.refinery.language.web.xtext.server.message.XtextWebResponse;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandlerException.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandlerException.java
index b686d33a..366ef0a7 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandlerException.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandlerException.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server;
 
 import java.io.Serial;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/SubscribingServiceContext.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/SubscribingServiceContext.java
index 78e00a9e..04212b84 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/SubscribingServiceContext.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/SubscribingServiceContext.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server;
 
 import java.util.Set;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/TransactionExecutor.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/TransactionExecutor.java
index 7bb11d2e..0135d8f5 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/TransactionExecutor.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/TransactionExecutor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server;
 
 import com.google.common.base.Strings;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorKind.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorKind.java
index f74bae74..6f4f265c 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorKind.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorKind.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.message;
 
 import com.google.gson.annotations.SerializedName;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorResponse.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorResponse.java
index 01d78c31..af38ad70 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorResponse.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorResponse.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.message;
 
 import java.util.Objects;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebOkResponse.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebOkResponse.java
index 8af27247..73527ee5 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebOkResponse.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebOkResponse.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.message;
 
 import java.util.Objects;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebPushMessage.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebPushMessage.java
index c9432e1c..e9ff87c4 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebPushMessage.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebPushMessage.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.message;
 
 import java.util.Objects;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebRequest.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebRequest.java
index 959749f8..ff788e94 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebRequest.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebRequest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.message;
 
 import java.util.Map;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebResponse.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebResponse.java
index 3bd13047..61444c99 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebResponse.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebResponse.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.message;
 
 public sealed interface XtextWebResponse permits XtextWebOkResponse,XtextWebErrorResponse,XtextWebPushMessage {
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PrecomputationListener.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PrecomputationListener.java
index 79a284db..110c8f52 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PrecomputationListener.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PrecomputationListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.push;
 
 import org.eclipse.xtext.web.server.IServiceResult;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushServiceDispatcher.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushServiceDispatcher.java
index c7b8108d..4c9135c8 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushServiceDispatcher.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushServiceDispatcher.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.push;
 
 import org.eclipse.xtext.web.server.IServiceContext;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocument.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocument.java
index 906b9e30..56fd12c9 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocument.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocument.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.push;
 
 import java.util.ArrayList;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentAccess.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentAccess.java
index b3666a86..d9e548cd 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentAccess.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentAccess.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.push;
 
 import org.eclipse.xtext.service.OperationCanceledManager;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentProvider.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentProvider.java
index b6f04748..b6f4fb43 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentProvider.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.push;
 
 import org.eclipse.xtext.web.server.IServiceContext;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleServiceContext.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleServiceContext.java
index 43e37160..fee1141d 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleServiceContext.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleServiceContext.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.servlet;
 
 import java.util.Map;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleSession.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleSession.java
index 09c055a2..bc60c282 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleSession.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleSession.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.servlet;
 
 import java.util.HashMap;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextStatusCode.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextStatusCode.java
index 0cd229e8..caa98e84 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextStatusCode.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextStatusCode.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.servlet;
 
 public final class XtextStatusCode {
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocket.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocket.java
index 1d9e0463..f7d33e9e 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocket.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocket.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.servlet;
 
 import com.google.gson.Gson;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocketServlet.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocketServlet.java
index 9a32b937..5e4fb0ce 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocketServlet.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocketServlet.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.servlet;
 
 import jakarta.servlet.ServletConfig;
diff --git a/subprojects/language-web/src/test/java/tools/refinery/language/web/ProblemWebSocketServletIntegrationTest.java b/subprojects/language-web/src/test/java/tools/refinery/language/web/ProblemWebSocketServletIntegrationTest.java
index ecbefc4f..53a757eb 100644
--- a/subprojects/language-web/src/test/java/tools/refinery/language/web/ProblemWebSocketServletIntegrationTest.java
+++ b/subprojects/language-web/src/test/java/tools/refinery/language/web/ProblemWebSocketServletIntegrationTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web;
 
 import org.eclipse.jetty.ee10.servlet.ServletContextHandler;
diff --git a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/AwaitTerminationExecutorServiceProvider.java b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/AwaitTerminationExecutorServiceProvider.java
index c634e8fc..630549d4 100644
--- a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/AwaitTerminationExecutorServiceProvider.java
+++ b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/AwaitTerminationExecutorServiceProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.tests;
 
 import com.google.inject.Singleton;
diff --git a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/ProblemWebInjectorProvider.java b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/ProblemWebInjectorProvider.java
index 43c12faa..4a5eed95 100644
--- a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/ProblemWebInjectorProvider.java
+++ b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/ProblemWebInjectorProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.tests;
 
 import org.eclipse.xtext.ide.ExecutorServiceProvider;
diff --git a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/RestartableCachedThreadPool.java b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/RestartableCachedThreadPool.java
index cf805eda..09079aa8 100644
--- a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/RestartableCachedThreadPool.java
+++ b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/RestartableCachedThreadPool.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.tests;
 
 import com.google.inject.Provider;
diff --git a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/WebSocketIntegrationTestClient.java b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/WebSocketIntegrationTestClient.java
index f19c10ca..2ac53ea6 100644
--- a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/WebSocketIntegrationTestClient.java
+++ b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/WebSocketIntegrationTestClient.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.tests;
 
 import org.eclipse.jetty.ee10.websocket.api.Session;
diff --git a/subprojects/language-web/src/test/java/tools/refinery/language/web/xtext/servlet/TransactionExecutorTest.java b/subprojects/language-web/src/test/java/tools/refinery/language/web/xtext/servlet/TransactionExecutorTest.java
index 17f1ff5c..841bacd3 100644
--- a/subprojects/language-web/src/test/java/tools/refinery/language/web/xtext/servlet/TransactionExecutorTest.java
+++ b/subprojects/language-web/src/test/java/tools/refinery/language/web/xtext/servlet/TransactionExecutorTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.servlet;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/build.gradle.kts b/subprojects/language/build.gradle.kts
index 4cfe6895..aa799c3b 100644
--- a/subprojects/language/build.gradle.kts
+++ b/subprojects/language/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import tools.refinery.gradle.utils.SonarPropertiesUtils
 
 plugins {
diff --git a/subprojects/language/src/main/java/tools/refinery/language/GenerateProblem.mwe2 b/subprojects/language/src/main/java/tools/refinery/language/GenerateProblem.mwe2
index 21ff456e..d8d89173 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/GenerateProblem.mwe2
+++ b/subprojects/language/src/main/java/tools/refinery/language/GenerateProblem.mwe2
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 module tools.refinery.language.GenerateProblem
 
 import org.eclipse.xtext.xtext.generator.*
@@ -55,7 +60,7 @@ Workflow {
                         }
                         webSupport = {
                                 // We only generate the {@code AbstractProblemWebModule},
-                                // because we write our own integration code for CodeMirror 6. 
+                                // because we write our own integration code for CodeMirror 6.
                                 framework = 'codemirror'
                                 generateHtmlExample = false
                                 generateJettyLauncher = false
diff --git a/subprojects/language/src/main/java/tools/refinery/language/Problem.xtext b/subprojects/language/src/main/java/tools/refinery/language/Problem.xtext
index 187ebf1f..9e330347 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/Problem.xtext
+++ b/subprojects/language/src/main/java/tools/refinery/language/Problem.xtext
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 grammar tools.refinery.language.Problem with org.eclipse.xtext.common.Terminals
 
 import "http://www.eclipse.org/emf/2002/Ecore" as ecore
diff --git a/subprojects/language/src/main/java/tools/refinery/language/ProblemRuntimeModule.java b/subprojects/language/src/main/java/tools/refinery/language/ProblemRuntimeModule.java
index 5efcdc81..2636a8ee 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/ProblemRuntimeModule.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/ProblemRuntimeModule.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/ProblemStandaloneSetup.java b/subprojects/language/src/main/java/tools/refinery/language/ProblemStandaloneSetup.java
index 41c96114..639d6778 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/ProblemStandaloneSetup.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/ProblemStandaloneSetup.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/conversion/ProblemValueConverterService.java b/subprojects/language/src/main/java/tools/refinery/language/conversion/ProblemValueConverterService.java
index 508688ed..afbc367e 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/conversion/ProblemValueConverterService.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/conversion/ProblemValueConverterService.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.conversion;
 
 import org.eclipse.xtext.common.services.DefaultTerminalConverters;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/conversion/UpperBoundValueConverter.java b/subprojects/language/src/main/java/tools/refinery/language/conversion/UpperBoundValueConverter.java
index be0d15ad..4886757d 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/conversion/UpperBoundValueConverter.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/conversion/UpperBoundValueConverter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.conversion;
 
 import org.eclipse.xtext.conversion.ValueConverterException;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/formatting2/ProblemFormatter.java b/subprojects/language/src/main/java/tools/refinery/language/formatting2/ProblemFormatter.java
index 797535ea..55a5ac20 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/formatting2/ProblemFormatter.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/formatting2/ProblemFormatter.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.26.0.M2
  */
 package tools.refinery.language.formatting2;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/naming/NamingUtil.java b/subprojects/language/src/main/java/tools/refinery/language/naming/NamingUtil.java
index e959be74..1647d4e7 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/naming/NamingUtil.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/naming/NamingUtil.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.naming;
 
 import java.util.regex.Pattern;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/naming/ProblemQualifiedNameConverter.java b/subprojects/language/src/main/java/tools/refinery/language/naming/ProblemQualifiedNameConverter.java
index 5453906f..74b4e208 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/naming/ProblemQualifiedNameConverter.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/naming/ProblemQualifiedNameConverter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.naming;
 
 import org.eclipse.xtext.naming.IQualifiedNameConverter;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/IdentifierTokenProvider.java b/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/IdentifierTokenProvider.java
index ab133a90..306a86fc 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/IdentifierTokenProvider.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/IdentifierTokenProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.parser.antlr;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/ProblemTokenSource.java b/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/ProblemTokenSource.java
index 0b4e7185..5b91a6cc 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/ProblemTokenSource.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/ProblemTokenSource.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.29.0.M2
  */
 package tools.refinery.language.parser.antlr;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/TokenSourceInjectingProblemParser.java b/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/TokenSourceInjectingProblemParser.java
index 0cdd38d8..fe4c0bc7 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/TokenSourceInjectingProblemParser.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/TokenSourceInjectingProblemParser.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.parser.antlr;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/DerivedVariableComputer.java b/subprojects/language/src/main/java/tools/refinery/language/resource/DerivedVariableComputer.java
index 6176b0c4..07c5da41 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/DerivedVariableComputer.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/DerivedVariableComputer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/ImplicitVariableScope.java b/subprojects/language/src/main/java/tools/refinery/language/resource/ImplicitVariableScope.java
index b0ac2ab6..e97c8287 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/ImplicitVariableScope.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/ImplicitVariableScope.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import org.eclipse.emf.ecore.EObject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/NodeNameCollector.java b/subprojects/language/src/main/java/tools/refinery/language/resource/NodeNameCollector.java
index 419be0d3..e5deca4d 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/NodeNameCollector.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/NodeNameCollector.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import com.google.common.collect.ImmutableSet;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemDerivedStateComputer.java b/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemDerivedStateComputer.java
index 8d3a552a..b145ef27 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemDerivedStateComputer.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemDerivedStateComputer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemLocationInFileProvider.java b/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemLocationInFileProvider.java
index df822987..1fe2df89 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemLocationInFileProvider.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemLocationInFileProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import org.eclipse.emf.ecore.EObject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemResourceDescriptionStrategy.java b/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemResourceDescriptionStrategy.java
index 1a0b73a8..630be379 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemResourceDescriptionStrategy.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemResourceDescriptionStrategy.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import org.eclipse.emf.ecore.EObject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/ReferenceCounter.java b/subprojects/language/src/main/java/tools/refinery/language/resource/ReferenceCounter.java
index ca20325e..f1be55ee 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/ReferenceCounter.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/ReferenceCounter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import java.util.HashMap;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemGlobalScopeProvider.java b/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemGlobalScopeProvider.java
index b749154c..4d2dd772 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemGlobalScopeProvider.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemGlobalScopeProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.scoping;
 
 import java.util.LinkedHashSet;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemLocalScopeProvider.java b/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemLocalScopeProvider.java
index 61883f0e..229960a0 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemLocalScopeProvider.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemLocalScopeProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.scoping;
 
 import java.util.List;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemScopeProvider.java b/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemScopeProvider.java
index 3ab07496..cf099aba 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemScopeProvider.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemScopeProvider.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.scoping;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/serializer/PreferShortAssertionsProblemSemanticSequencer.java b/subprojects/language/src/main/java/tools/refinery/language/serializer/PreferShortAssertionsProblemSemanticSequencer.java
index 27ce1521..b9cafbc2 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/serializer/PreferShortAssertionsProblemSemanticSequencer.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/serializer/PreferShortAssertionsProblemSemanticSequencer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.serializer;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/BuiltinSymbols.java b/subprojects/language/src/main/java/tools/refinery/language/utils/BuiltinSymbols.java
index d3777cd3..c8c7fd4a 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/BuiltinSymbols.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/BuiltinSymbols.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import tools.refinery.language.model.problem.*;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/CollectedSymbols.java b/subprojects/language/src/main/java/tools/refinery/language/utils/CollectedSymbols.java
index b5682f32..e4e4d07a 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/CollectedSymbols.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/CollectedSymbols.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import java.util.Map;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/ContainmentRole.java b/subprojects/language/src/main/java/tools/refinery/language/utils/ContainmentRole.java
index 708e10a9..a43c7dfe 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/ContainmentRole.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/ContainmentRole.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import tools.refinery.language.model.problem.PredicateKind;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/NodeInfo.java b/subprojects/language/src/main/java/tools/refinery/language/utils/NodeInfo.java
index c8f47653..0fa7a454 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/NodeInfo.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/NodeInfo.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 public record NodeInfo(String name, boolean individual) {
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemDesugarer.java b/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemDesugarer.java
index b8200919..738a0896 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemDesugarer.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemDesugarer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemUtil.java b/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemUtil.java
index 1e5164d3..9486dc2a 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemUtil.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemUtil.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import org.eclipse.emf.common.util.URI;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/RelationInfo.java b/subprojects/language/src/main/java/tools/refinery/language/utils/RelationInfo.java
index 2253d257..1c46fe72 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/RelationInfo.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/RelationInfo.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import tools.refinery.language.model.problem.*;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/SymbolCollector.java b/subprojects/language/src/main/java/tools/refinery/language/utils/SymbolCollector.java
index 65167ed6..a4ea1113 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/SymbolCollector.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/SymbolCollector.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/validation/ProblemValidator.java b/subprojects/language/src/main/java/tools/refinery/language/validation/ProblemValidator.java
index 659d882c..88d50c5b 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/validation/ProblemValidator.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/validation/ProblemValidator.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.validation;
diff --git a/subprojects/language/src/main/resources/tools/refinery/language/builtin.problem b/subprojects/language/src/main/resources/tools/refinery/language/builtin.problem
index 06b6da1d..9c1d7669 100644
--- a/subprojects/language/src/main/resources/tools/refinery/language/builtin.problem
+++ b/subprojects/language/src/main/resources/tools/refinery/language/builtin.problem
@@ -1,3 +1,6 @@
+% SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+%
+% SPDX-License-Identifier: EPL-2.0
 problem builtin.
 
 abstract class node {
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/ProblemParsingTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/ProblemParsingTest.java
index 58daa365..c7952369 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/ProblemParsingTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/ProblemParsingTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/formatting2/ProblemFormatterTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/formatting2/ProblemFormatterTest.java
index 6e0802ca..f688d970 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/formatting2/ProblemFormatterTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/formatting2/ProblemFormatterTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.formatting2;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/IdentifierTokenProviderTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/IdentifierTokenProviderTest.java
index abff8d9c..37d38dd9 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/IdentifierTokenProviderTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/IdentifierTokenProviderTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.parser.antlr;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/ProblemTokenSourceTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/ProblemTokenSourceTest.java
index cb42d5d0..644744a0 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/ProblemTokenSourceTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/ProblemTokenSourceTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.parser.antlr;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/TransitiveClosureParserTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/TransitiveClosureParserTest.java
index 65ceb45f..1180d131 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/TransitiveClosureParserTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/TransitiveClosureParserTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.parser.antlr;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/rules/RuleParsingTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/rules/RuleParsingTest.java
index 72e5e18a..68514bfa 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/rules/RuleParsingTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/rules/RuleParsingTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.rules;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/scoping/NodeScopingTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/scoping/NodeScopingTest.java
index fa462691..734bfcd1 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/scoping/NodeScopingTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/scoping/NodeScopingTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.scoping;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/serializer/ProblemSerializerTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/serializer/ProblemSerializerTest.java
index 4a18704a..3f3a081f 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/serializer/ProblemSerializerTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/serializer/ProblemSerializerTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.serializer;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/utils/SymbolCollectorTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/utils/SymbolCollectorTest.java
index af6de37f..d200eeff 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/utils/SymbolCollectorTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/utils/SymbolCollectorTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.utils;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemNavigationUtil.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemNavigationUtil.java
index 5761935b..d92011a9 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemNavigationUtil.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemNavigationUtil.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import java.util.List;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemParseHelper.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemParseHelper.java
index 5e044a94..6f6a87f7 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemParseHelper.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemParseHelper.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import org.eclipse.xtext.testing.util.ParseHelper;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAction.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAction.java
index d176727b..3a49a0b9 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAction.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Action;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedArgument.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedArgument.java
index 9e4c59f5..ed749fed 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedArgument.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedArgument.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.*;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertion.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertion.java
index 2c38639d..b2ef6e48 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertion.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertion.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Assertion;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertionArgument.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertionArgument.java
index 840c1f74..b36f2506 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertionArgument.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertionArgument.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.AssertionArgument;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAtom.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAtom.java
index 498991f8..c02f447b 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAtom.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAtom.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Atom;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedClassDeclaration.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedClassDeclaration.java
index 41b2ea62..a228137c 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedClassDeclaration.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedClassDeclaration.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.ClassDeclaration;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConjunction.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConjunction.java
index 88ff71ab..b126b1ce 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConjunction.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConjunction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Conjunction;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConsequent.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConsequent.java
index 46faa7da..8d6a92f8 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConsequent.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConsequent.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Consequent;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedEnumDeclaration.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedEnumDeclaration.java
index 74dcf01b..229a8c0a 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedEnumDeclaration.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedEnumDeclaration.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.EnumDeclaration;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedLiteral.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedLiteral.java
index 4aa71b99..160e5dd8 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedLiteral.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Atom;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedParametricDefinition.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedParametricDefinition.java
index c2f18a60..d44b79ed 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedParametricDefinition.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedParametricDefinition.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Parameter;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedPredicateDefinition.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedPredicateDefinition.java
index 7b95ecc1..2cf5fd89 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedPredicateDefinition.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedPredicateDefinition.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.PredicateDefinition;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedProblem.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedProblem.java
index 78ca95c7..e5aa0043 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedProblem.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedProblem.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import org.eclipse.emf.ecore.resource.Resource.Diagnostic;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedRuleDefinition.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedRuleDefinition.java
index a4cf2eaf..326d8ec3 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedRuleDefinition.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedRuleDefinition.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.RuleDefinition;
diff --git a/subprojects/store-query-viatra/NOTICE.md b/subprojects/store-query-viatra/NOTICE.md
new file mode 100644
index 00000000..7c21726a
--- /dev/null
+++ b/subprojects/store-query-viatra/NOTICE.md
@@ -0,0 +1,87 @@
+<!--
+  Copyright (c) 2018-2019, Zoltan Ujhelyi, IncQuery Labs Ltd.
+  Copyright (c) 2023 The Refinery Authors <https://refinery.tools/>
+
+  SPDX-License-Identifier: EPL-2.0
+-->
+
+This module contains source code from the [Eclipse VIATRA project](https://projects.eclipse.org/projects/modeling.viatra), which is available under the terms of the [Eclipse Public License v 2.0](http://www.eclipse.org/legal/epl-v20.html).
+
+We reproduce the [accompanying notices](https://github.com/viatra/org.eclipse.viatra/blob/d422bcc626a99c4640c0d13931f393ccea0d2326/NOTICE.md) in full below:
+
+# Notices for Eclipse VIATRA
+
+This content is produced and maintained by the Eclipse VIATRA project.
+
+* Project home: https://projects.eclipse.org/projects/modeling.viatra
+
+## Trademarks
+
+Eclipse VIATRA, and VIATRA are trademarks of the Eclipse Foundation.
+
+## Copyright
+
+All content is the property of the respective authors or their employers. For
+more information regarding authorship of content, please consult the listed
+source code repository logs.
+
+## Declared Project Licenses
+
+This program and the accompanying materials are made available under the terms
+of the Eclipse Public License v. 2.0 which is available at
+http://www.eclipse.org/legal/epl-v20.html.
+
+SPDX-License-Identifier: EPL-2.0
+
+## Source Code
+
+The project maintains the following source code repositories:
+
+* http://git.eclipse.org/c/viatra/org.eclipse.viatra.git
+* http://git.eclipse.org/c/viatra/org.eclipse.viatra.modelobfuscator.git
+* http://git.eclipse.org/c/viatra/org.eclipse.viatra.examples.git
+* http://git.eclipse.org/c/viatra/org.eclipse.viatra2.vpm.git
+
+## Third-party Content
+
+This project leverages the following third party content.
+
+ANTLR Runtime only: (3.2)
+
+* License: New BSD license
+
+Apache Commons Language Library (2.1)
+
+* License: Apache License, 2.0
+
+Google Guice / Inject Core API (3.0.0)
+
+* License: Apache License, 2.0
+
+Google Guice / Inject Core API (3.0.0)
+
+* License: Apache License 2.0
+
+Guava (10.0.1)
+
+* License: Apache License, 2.0
+
+Guice (2.0)
+
+* License: Apache License, 2.0
+
+guice-multibindings (3.0.0)
+
+* License: Apache License, 2.0
+
+log4j (1.2.15)
+
+* License: Apache License 2.0
+
+LPG Java Runtime (lpgjavaruntime.jar) (1.1)
+
+* License: Eclipse Public License
+
+mockito (1.9.5)
+
+* License: Apache License, 2.0, New BSD license, MIT license
diff --git a/subprojects/store-query-viatra/build.gradle.kts b/subprojects/store-query-viatra/build.gradle.kts
index 4a894f52..e3a22145 100644
--- a/subprojects/store-query-viatra/build.gradle.kts
+++ b/subprojects/store-query-viatra/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-library")
 }
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQuery.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQuery.java
index 677e3c7d..3fff6f2e 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQuery.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import tools.refinery.store.adapter.ModelAdapterBuilderFactory;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryAdapter.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryAdapter.java
index 7e21476b..411e251e 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryAdapter.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import tools.refinery.store.query.ModelQueryAdapter;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryBuilder.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryBuilder.java
index 7ae86f9f..310171e8 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryBuilder.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import org.eclipse.viatra.query.runtime.api.ViatraQueryEngineOptions;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryStoreAdapter.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryStoreAdapter.java
index 1ee02f12..da6d7bd5 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryStoreAdapter.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryStoreAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import org.eclipse.viatra.query.runtime.api.ViatraQueryEngineOptions;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/RelationalScope.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/RelationalScope.java
index 8328e759..d1a65a89 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/RelationalScope.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/RelationalScope.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal;
 
 import org.apache.log4j.Logger;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryAdapterImpl.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryAdapterImpl.java
index 8be30fee..7103a561 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryAdapterImpl.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryAdapterImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal;
 
 import org.eclipse.viatra.query.runtime.api.AdvancedViatraQueryEngine;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryBuilderImpl.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryBuilderImpl.java
index bfabf26e..999d349a 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryBuilderImpl.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryBuilderImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal;
 
 import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryStoreAdapterImpl.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryStoreAdapterImpl.java
index 04c48c43..aa102a35 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryStoreAdapterImpl.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryStoreAdapterImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal;
 
 import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperator.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperator.java
index e0bca9e0..bfd4c049 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperator.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.cardinality;
 
 import org.eclipse.viatra.query.runtime.matchers.psystem.aggregations.BoundAggregator;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/DummyBaseIndexer.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/DummyBaseIndexer.java
index 2a24b67c..8cb199d2 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/DummyBaseIndexer.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/DummyBaseIndexer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.context;
 
 import org.eclipse.viatra.query.runtime.api.scope.IBaseIndex;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalEngineContext.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalEngineContext.java
index 28bc69d0..7220f8ca 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalEngineContext.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalEngineContext.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.context;
 
 import org.eclipse.viatra.query.runtime.api.scope.IBaseIndex;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalQueryMetaContext.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalQueryMetaContext.java
index d2c6beb4..07a5a6ea 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalQueryMetaContext.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalQueryMetaContext.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.context;
 
 import org.eclipse.viatra.query.runtime.matchers.context.AbstractQueryMetaContext;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalRuntimeContext.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalRuntimeContext.java
index 854817b1..71943737 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalRuntimeContext.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalRuntimeContext.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.context;
 
 import org.eclipse.viatra.query.runtime.matchers.context.*;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendOperationExecutor.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendOperationExecutor.java
index 2d3dd5a7..37177cbf 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendOperationExecutor.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendOperationExecutor.java
@@ -1,5 +1,6 @@
 /*******************************************************************************
  * Copyright (c) 2010-2013, Zoltan Ujhelyi, Akos Horvath, Istvan Rath and Daniel Varro
+ * Copyright (c) 2023 The Refinery Authors <https://refinery.tools/>
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0 which is available at
  * http://www.eclipse.org/legal/epl-v20.html.
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendPositivePatternCall.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendPositivePatternCall.java
index aaaece80..9d48c785 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendPositivePatternCall.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendPositivePatternCall.java
@@ -1,5 +1,6 @@
 /*******************************************************************************
  * Copyright (c) 2010-2016, Grill Balázs, IncQueryLabs
+ * Copyright (c) 2023 The Refinery Authors <https://refinery.tools/>
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0 which is available at
  * http://www.eclipse.org/legal/epl-v20.html.
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/FlatCostFunction.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/FlatCostFunction.java
index 84cab142..cc906f22 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/FlatCostFunction.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/FlatCostFunction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.localsearch;
 
 import org.eclipse.viatra.query.runtime.localsearch.planner.cost.IConstraintEvaluationContext;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/GenericTypeExtend.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/GenericTypeExtend.java
index 64653658..96ac4a72 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/GenericTypeExtend.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/GenericTypeExtend.java
@@ -1,5 +1,6 @@
 /*******************************************************************************
  * Copyright (c) 2010-2017, Zoltan Ujhelyi, IncQuery Labs Ltd.
+ * Copyright (c) 2023 The Refinery Authors <https://refinery.tools/>
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0 which is available at
  * http://www.eclipse.org/legal/epl-v20.html.
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchBackendFactory.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchBackendFactory.java
index 156eb313..0c77f587 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchBackendFactory.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchBackendFactory.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.localsearch;
 
 import org.eclipse.viatra.query.runtime.localsearch.matcher.integration.AbstractLocalSearchResultProvider;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchResultProvider.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchResultProvider.java
index be2a38ca..da37be14 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchResultProvider.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchResultProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.localsearch;
 
 import org.eclipse.viatra.query.runtime.localsearch.matcher.integration.AbstractLocalSearchResultProvider;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalOperationCompiler.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalOperationCompiler.java
index b6832b39..f76ef486 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalOperationCompiler.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalOperationCompiler.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.localsearch;
 
 import org.eclipse.viatra.query.runtime.localsearch.operations.generic.GenericTypeExtendSingleValue;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalCursor.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalCursor.java
index 52a83f69..47efb2aa 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalCursor.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.rete.index.IterableIndexer;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalViatraMatcher.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalViatraMatcher.java
index adb34b8b..f018288b 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalViatraMatcher.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalViatraMatcher.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.IQueryResultProvider;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/IndexerUtils.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/IndexerUtils.java
index 55eb8c44..15f00b2d 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/IndexerUtils.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/IndexerUtils.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.TupleMask;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtils.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtils.java
index d327c537..1c784492 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtils.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtils.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.ITuple;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RawPatternMatcher.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RawPatternMatcher.java
index b3d05967..5b82c4b7 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RawPatternMatcher.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RawPatternMatcher.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.api.GenericPatternMatcher;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalCursor.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalCursor.java
index e3df0441..1dc8f5db 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalCursor.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.ITuple;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalViatraMatcher.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalViatraMatcher.java
index 9373709d..d1476920 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalViatraMatcher.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalViatraMatcher.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.IQueryResultProvider;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/UnsafeFunctionalCursor.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/UnsafeFunctionalCursor.java
index e9540d1d..4a41d724 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/UnsafeFunctionalCursor.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/UnsafeFunctionalCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.ITuple;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/AssumptionEvaluator.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/AssumptionEvaluator.java
index a80b0f90..cf127291 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/AssumptionEvaluator.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/AssumptionEvaluator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.psystem.IValueProvider;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/Dnf2PQuery.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/Dnf2PQuery.java
index 7afeb977..714d41c0 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/Dnf2PQuery.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/Dnf2PQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.IQueryBackendFactory;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/QueryWrapperFactory.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/QueryWrapperFactory.java
index 24ae5196..30f848a6 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/QueryWrapperFactory.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/QueryWrapperFactory.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.context.IInputKey;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RawPQuery.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RawPQuery.java
index aad4ba3c..255738c5 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RawPQuery.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RawPQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.api.GenericQuerySpecification;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RelationViewWrapper.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RelationViewWrapper.java
index 48bf558d..02da932b 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RelationViewWrapper.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RelationViewWrapper.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.context.common.BaseInputKeyWrapper;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatefulMultisetAggregator.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatefulMultisetAggregator.java
index 2798a252..461416f7 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatefulMultisetAggregator.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatefulMultisetAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.psystem.aggregations.IMultisetAggregationOperator;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatelessMultisetAggregator.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatelessMultisetAggregator.java
index 7cc71ee9..49175d75 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatelessMultisetAggregator.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatelessMultisetAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.psystem.aggregations.IMultisetAggregationOperator;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/TermEvaluator.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/TermEvaluator.java
index ab123c50..1187f57a 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/TermEvaluator.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/TermEvaluator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.psystem.IExpressionEvaluator;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/ValueProviderBasedValuation.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/ValueProviderBasedValuation.java
index 30c2fce7..62cb8b3a 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/ValueProviderBasedValuation.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/ValueProviderBasedValuation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.psystem.IValueProvider;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/ModelUpdateListener.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/ModelUpdateListener.java
index fc935aa6..c612574f 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/ModelUpdateListener.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/ModelUpdateListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.update;
 
 import org.eclipse.viatra.query.runtime.matchers.context.IInputKey;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewFilter.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewFilter.java
index 221f1b4a..efdbfcbe 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewFilter.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewFilter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.update;
 
 import org.eclipse.viatra.query.runtime.matchers.context.IInputKey;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewUpdateListener.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewUpdateListener.java
index 5e5f60e3..185e4ebc 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewUpdateListener.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewUpdateListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.update;
 
 import org.eclipse.viatra.query.runtime.matchers.context.IInputKey;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TupleChangingRelationViewUpdateListener.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TupleChangingRelationViewUpdateListener.java
index 0f6ed3b3..be4951af 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TupleChangingRelationViewUpdateListener.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TupleChangingRelationViewUpdateListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.update;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TuplePreservingRelationViewUpdateListener.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TuplePreservingRelationViewUpdateListener.java
index 91e9371b..9638266b 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TuplePreservingRelationViewUpdateListener.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TuplePreservingRelationViewUpdateListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.update;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/DiagonalQueryTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/DiagonalQueryTest.java
index 90229b73..da4aba7f 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/DiagonalQueryTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/DiagonalQueryTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/FunctionalQueryTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/FunctionalQueryTest.java
index fa2a008f..3af67a50 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/FunctionalQueryTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/FunctionalQueryTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTest.java
index 8a3f9d88..e82f0a15 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTransactionTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTransactionTest.java
index abd49341..07b799ac 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTransactionTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTransactionTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorStreamTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorStreamTest.java
index c529117e..53d03cbd 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorStreamTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorStreamTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.cardinality;
 
 import org.junit.jupiter.params.ParameterizedTest;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorTest.java
index 20dad543..677eeeac 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.cardinality;
 
 import org.junit.jupiter.api.BeforeEach;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtilsTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtilsTest.java
index ea0b15ec..968c6c5e 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtilsTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtilsTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.*;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryAssertions.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryAssertions.java
index 2769621d..7a25cfdc 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryAssertions.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryAssertions.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.tests;
 
 import org.junit.jupiter.api.function.Executable;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryBackendHint.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryBackendHint.java
index b1818a17..dc0e92c8 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryBackendHint.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryBackendHint.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.tests;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEngineTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEngineTest.java
index f129520c..d4f16da7 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEngineTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEngineTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.tests;
 
 import org.junit.jupiter.params.ParameterizedTest;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEvaluationHintSource.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEvaluationHintSource.java
index a55762e2..9e75d5f3 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEvaluationHintSource.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEvaluationHintSource.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.tests;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
diff --git a/subprojects/store-query/build.gradle.kts b/subprojects/store-query/build.gradle.kts
index 889a0479..4d8e2605 100644
--- a/subprojects/store-query/build.gradle.kts
+++ b/subprojects/store-query/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-library")
         id("tools.refinery.gradle.java-test-fixtures")
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/AnyResultSet.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/AnyResultSet.java
index 6d411212..f29bb278 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/AnyResultSet.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/AnyResultSet.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.query.dnf.AnyQuery;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/Constraint.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/Constraint.java
index cec4c19f..10d8a579 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/Constraint.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/Constraint.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/EmptyResultSet.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/EmptyResultSet.java
index 4c8eeab0..5361f645 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/EmptyResultSet.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/EmptyResultSet.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQuery.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQuery.java
index 6a1aeabb..60698498 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQuery.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.adapter.ModelAdapterType;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryAdapter.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryAdapter.java
index 2e30fec4..ae3bbcbb 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryAdapter.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.adapter.ModelAdapter;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryBuilder.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryBuilder.java
index 4fdc9210..76d6c3ba 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryBuilder.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.adapter.ModelAdapterBuilder;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryStoreAdapter.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryStoreAdapter.java
index 514e582b..33318abc 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryStoreAdapter.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryStoreAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.adapter.ModelStoreAdapter;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/ResultSet.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/ResultSet.java
index 2758c74f..9ab83172 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/ResultSet.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/ResultSet.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/AnyQuery.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/AnyQuery.java
index d0a2367f..5e28af68 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/AnyQuery.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/AnyQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 public sealed interface AnyQuery permits Query {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Dnf.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Dnf.java
index 1b7759c7..3321a10f 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Dnf.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Dnf.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.equality.DnfEqualityChecker;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfBuilder.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfBuilder.java
index aad5a85f..4f920f8f 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfBuilder.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.literal.Literal;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfClause.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfClause.java
index 01830af1..a01d7d55 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfClause.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfClause.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfUtils.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfUtils.java
index 9bcf944c..65ab3634 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfUtils.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfUtils.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import java.util.UUID;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalDependency.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalDependency.java
index f4cd109f..b00b2cb7 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalDependency.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalDependency.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import java.util.HashSet;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQuery.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQuery.java
index 5bf6f8c5..680fa631 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQuery.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.literal.CallPolarity;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQueryBuilder.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQueryBuilder.java
index ca2bc006..63580676 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQueryBuilder.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQueryBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.literal.Literal;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Query.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Query.java
index 32e33052..d3de475f 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Query.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Query.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 public sealed interface Query<T> extends AnyQuery permits RelationalQuery, FunctionalQuery {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/QueryBuilder.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/QueryBuilder.java
index ed253cc9..f925c9ac 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/QueryBuilder.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/QueryBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.literal.Literal;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/RelationalQuery.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/RelationalQuery.java
index 5307e509..0741d8d9 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/RelationalQuery.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/RelationalQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.literal.CallLiteral;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DeepDnfEqualityChecker.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DeepDnfEqualityChecker.java
index c3bc3ea3..bb60ccc9 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DeepDnfEqualityChecker.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DeepDnfEqualityChecker.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.equality;
 
 import tools.refinery.store.query.dnf.Dnf;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DnfEqualityChecker.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DnfEqualityChecker.java
index 6b1f2076..4a8bee3b 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DnfEqualityChecker.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DnfEqualityChecker.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.equality;
 
 import tools.refinery.store.query.dnf.Dnf;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/LiteralEqualityHelper.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/LiteralEqualityHelper.java
index 07d261ea..0f6ee6c2 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/LiteralEqualityHelper.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/LiteralEqualityHelper.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.equality;
 
 import tools.refinery.store.query.dnf.Dnf;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AbstractCallLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AbstractCallLiteral.java
index 657ca26b..b08c1037 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AbstractCallLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AbstractCallLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.Constraint;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AggregationLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AggregationLiteral.java
index df64839c..93e59291 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AggregationLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AggregationLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.Constraint;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssignLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssignLiteral.java
index 52ac42d7..8cc3fae6 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssignLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssignLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssumeLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssumeLiteral.java
index 0b4267b4..58d563da 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssumeLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssumeLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/BooleanLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/BooleanLiteral.java
index 38be61a4..a32cfd80 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/BooleanLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/BooleanLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.term.Variable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallLiteral.java
index 78fae7f5..82088c8b 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.Constraint;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallPolarity.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallPolarity.java
index 84b4b771..ca70b0fd 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallPolarity.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallPolarity.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 public enum CallPolarity {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CanNegate.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CanNegate.java
index 3e159c43..35dcb3fb 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CanNegate.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CanNegate.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 public interface CanNegate<T extends CanNegate<T>> extends Literal {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/ConstantLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/ConstantLiteral.java
index 93fa3df0..fa7979d1 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/ConstantLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/ConstantLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CountLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CountLiteral.java
index 32e7ba3a..11f78fa8 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CountLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CountLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.Constraint;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/EquivalenceLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/EquivalenceLiteral.java
index 4dc86b98..3876574c 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/EquivalenceLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/EquivalenceLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.term.NodeVariable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literal.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literal.java
index 6347410e..52411ee8 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literal.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literal.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.term.Variable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/LiteralReduction.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/LiteralReduction.java
index 146089f6..9d8352ea 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/LiteralReduction.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/LiteralReduction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 public enum LiteralReduction {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literals.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literals.java
index 89039352..b3a87811 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literals.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literals.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.term.Term;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/CompositeSubstitution.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/CompositeSubstitution.java
index f8064ca2..d175130e 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/CompositeSubstitution.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/CompositeSubstitution.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.substitution;
 
 import tools.refinery.store.query.term.Variable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/MapBasedSubstitution.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/MapBasedSubstitution.java
index c7754619..a8201eef 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/MapBasedSubstitution.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/MapBasedSubstitution.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.substitution;
 
 import tools.refinery.store.query.term.Variable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/RenewingSubstitution.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/RenewingSubstitution.java
index 7847e582..9b737ceb 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/RenewingSubstitution.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/RenewingSubstitution.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.substitution;
 
 import tools.refinery.store.query.term.Variable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/StatelessSubstitution.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/StatelessSubstitution.java
index eed414d9..bb3803d3 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/StatelessSubstitution.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/StatelessSubstitution.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.substitution;
 
 import tools.refinery.store.query.term.Variable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitution.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitution.java
index 99f84b9e..5714edf4 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitution.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitution.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.substitution;
 
 import tools.refinery.store.query.term.AnyDataVariable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitutions.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitutions.java
index 5d4654da..c4791bf1 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitutions.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitutions.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.substitution;
 
 import org.jetbrains.annotations.NotNull;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Aggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Aggregator.java
index 47421a94..0684a9d9 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Aggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Aggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import java.util.stream.Stream;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyDataVariable.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyDataVariable.java
index ecfefcf9..ccc063af 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyDataVariable.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyDataVariable.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyTerm.java
index 8f998d45..c12c0166 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryOperator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryOperator.java
index 8706a046..5ff7c65c 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryOperator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryOperator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 public enum ArithmeticBinaryOperator {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryTerm.java
index 887a1e6e..e405df00 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryOperator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryOperator.java
index 6a7c25db..d98134f3 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryOperator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryOperator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 public enum ArithmeticUnaryOperator {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryTerm.java
index b78239c7..bdc87545 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AssignedValue.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AssignedValue.java
index 465e690f..0cf30aa6 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AssignedValue.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AssignedValue.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.literal.Literal;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/BinaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/BinaryTerm.java
index 34f48ccc..b2994d23 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/BinaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/BinaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonOperator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonOperator.java
index 44dcce10..d04ae22c 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonOperator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonOperator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 public enum ComparisonOperator {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonTerm.java
index 320d42df..2c304aef 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ConstantTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ConstantTerm.java
index 2185fe37..b03f07fd 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ConstantTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ConstantTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataSort.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataSort.java
index 4fb44492..6b8669ee 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataSort.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataSort.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataVariable.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataVariable.java
index af070ca7..50ef745c 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataVariable.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataVariable.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ExtremeValueAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ExtremeValueAggregator.java
index 57ff597c..657cb631 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ExtremeValueAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ExtremeValueAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import java.util.Comparator;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeSort.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeSort.java
index 1a4b2d4b..b9be03f7 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeSort.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeSort.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeVariable.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeVariable.java
index 7419aaad..de2f945a 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeVariable.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeVariable.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/OpaqueTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/OpaqueTerm.java
index 8faa9c75..6626365f 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/OpaqueTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/OpaqueTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Sort.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Sort.java
index 622bcfce..2b3345f9 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Sort.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Sort.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregate.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregate.java
index 7ce91305..ab310556 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregate.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregate.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 public interface StatefulAggregate<R, T> {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregator.java
index c215a511..df746a90 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import java.util.stream.Stream;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatelessAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatelessAggregator.java
index 74dbd335..a094919e 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatelessAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatelessAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import java.util.stream.Stream;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Term.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Term.java
index 95434db2..e6818b88 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Term.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Term.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.literal.AssignLiteral;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/UnaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/UnaryTerm.java
index 4083111a..069e0d95 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/UnaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/UnaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Variable.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Variable.java
index 957e10f8..c4ca6f77 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Variable.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Variable.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolConstantTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolConstantTerm.java
index 5079f1ce..e5690ab6 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolConstantTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolConstantTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.bool;
 
 import tools.refinery.store.query.term.ConstantTerm;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolLogicBinaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolLogicBinaryTerm.java
index d85f864d..11e764c2 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolLogicBinaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolLogicBinaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.bool;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolNotTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolNotTerm.java
index 855139b5..bb06cf8b 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolNotTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolNotTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.bool;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolTerms.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolTerms.java
index 3d6c8d9d..55825952 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolTerms.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolTerms.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.bool;
 
 import tools.refinery.store.query.term.ConstantTerm;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/LogicBinaryOperator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/LogicBinaryOperator.java
index ca9ac66e..93a72f88 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/LogicBinaryOperator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/LogicBinaryOperator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.bool;
 
 public enum LogicBinaryOperator {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticBinaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticBinaryTerm.java
index 32e41718..8a76ecbd 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticBinaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticBinaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticUnaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticUnaryTerm.java
index 1e769259..8522f2c1 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticUnaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticUnaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntComparisonTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntComparisonTerm.java
index 322d2b80..2ce2b2f3 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntComparisonTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntComparisonTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 import tools.refinery.store.query.substitution.Substitution;
 import tools.refinery.store.query.term.ComparisonOperator;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntExtremeValueAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntExtremeValueAggregator.java
index d5a6add0..7982f45c 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntExtremeValueAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntExtremeValueAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 
 import tools.refinery.store.query.term.ExtremeValueAggregator;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntSumAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntSumAggregator.java
index 65024f52..cd718c53 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntSumAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntSumAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 
 import tools.refinery.store.query.term.StatelessAggregator;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntTerms.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntTerms.java
index 86594deb..38f7f449 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntTerms.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntTerms.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 
 import tools.refinery.store.query.term.*;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/RealToIntTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/RealToIntTerm.java
index 53875ddc..399adf4a 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/RealToIntTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/RealToIntTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/IntToRealTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/IntToRealTerm.java
index 55590824..4f7d5687 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/IntToRealTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/IntToRealTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticBinaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticBinaryTerm.java
index 57bcbe5e..8d5c9242 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticBinaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticBinaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticUnaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticUnaryTerm.java
index 632e68bf..9d233dfc 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticUnaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticUnaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealComparisonTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealComparisonTerm.java
index 75d97adb..25c88f89 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealComparisonTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealComparisonTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealExtremeValueAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealExtremeValueAggregator.java
index 23384530..526e643b 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealExtremeValueAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealExtremeValueAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.term.ExtremeValueAggregator;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealSumAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealSumAggregator.java
index d5888664..306191a3 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealSumAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealSumAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.term.StatefulAggregate;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealTerms.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealTerms.java
index a8117842..1240d478 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealTerms.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealTerms.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.term.*;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/RestrictedValuation.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/RestrictedValuation.java
index fb512d88..fc8406aa 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/RestrictedValuation.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/RestrictedValuation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.valuation;
 
 import tools.refinery.store.query.term.AnyDataVariable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/SubstitutedValuation.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/SubstitutedValuation.java
index 8e79663c..1c14112c 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/SubstitutedValuation.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/SubstitutedValuation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.valuation;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/Valuation.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/Valuation.java
index 3ba9a6b8..88fee35b 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/Valuation.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/Valuation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.valuation;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/AnyRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/AnyRelationView.java
index 6ae410f2..9aa923af 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/AnyRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/AnyRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FilteredRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FilteredRelationView.java
index 64c601bb..9717b2c1 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FilteredRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FilteredRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.tuple.Tuple;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ForbiddenRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ForbiddenRelationView.java
index 050b9496..c19d9282 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ForbiddenRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ForbiddenRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.representation.Symbol;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionView.java
new file mode 100644
index 00000000..cf946d54
--- /dev/null
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionView.java
@@ -0,0 +1,25 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package tools.refinery.store.query.view;
+
+import tools.refinery.store.query.term.DataSort;
+import tools.refinery.store.query.term.Sort;
+import tools.refinery.store.representation.Symbol;
+
+public final class FunctionView<T> extends AbstractFunctionView<T> {
+        public FunctionView(Symbol<T> symbol, String name) {
+                super(symbol, name);
+        }
+
+        public FunctionView(Symbol<T> symbol) {
+                this(symbol, "function");
+        }
+
+        @Override
+        protected Sort getForwardMappedValueSort() {
+                return new DataSort<>(getSymbol().valueType());
+        }
+}
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionalRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionalRelationView.java
index 7ec9e7ac..ab48386e 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionalRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionalRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/KeyOnlyRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/KeyOnlyRelationView.java
index e1b2e45b..9553a0cc 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/KeyOnlyRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/KeyOnlyRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.representation.Symbol;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MayRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MayRelationView.java
index a2a84b3c..60325f35 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MayRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MayRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.representation.Symbol;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MustRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MustRelationView.java
index 72ac0ca3..d7e7ae2e 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MustRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MustRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.representation.Symbol;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/NodeFunctionView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/NodeFunctionView.java
new file mode 100644
index 00000000..73c296e0
--- /dev/null
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/NodeFunctionView.java
@@ -0,0 +1,26 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package tools.refinery.store.query.view;
+
+import tools.refinery.store.query.term.NodeSort;
+import tools.refinery.store.query.term.Sort;
+import tools.refinery.store.representation.Symbol;
+import tools.refinery.store.tuple.Tuple1;
+
+public final class NodeFunctionView extends AbstractFunctionView<Tuple1> {
+        public NodeFunctionView(Symbol<Tuple1> symbol, String name) {
+                super(symbol, name);
+        }
+
+        public NodeFunctionView(Symbol<Tuple1> symbol) {
+                this(symbol, "function");
+        }
+
+        @Override
+        protected Sort getForwardMappedValueSort() {
+                return NodeSort.INSTANCE;
+        }
+}
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationView.java
index d7164b3b..fd4f47b4 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.map.CursorAsIterator;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationViewImplication.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationViewImplication.java
index 2ba1fcc4..c54cce2f 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationViewImplication.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationViewImplication.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import java.util.List;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/TuplePreservingRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/TuplePreservingRelationView.java
index 234b3a9a..e6e54aa1 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/TuplePreservingRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/TuplePreservingRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ViewImplication.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ViewImplication.java
new file mode 100644
index 00000000..fc2db9f2
--- /dev/null
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ViewImplication.java
@@ -0,0 +1,23 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package tools.refinery.store.query.view;
+
+import java.util.List;
+
+public record ViewImplication(AnySymbolView implyingView, AnySymbolView impliedView, List<Integer> impliedIndices) {
+        public ViewImplication {
+                if (impliedIndices.size() != impliedView.arity()) {
+                        throw new IllegalArgumentException("Expected %d implied indices for %s, but %d are provided"
+                                        .formatted(impliedView.arity(), impliedView, impliedIndices.size()));
+                }
+                for (var index : impliedIndices) {
+                        if (impliedView.invalidIndex(index)) {
+                                throw new IllegalArgumentException("%d is not a valid index for %s".formatted(index,
+                                                implyingView));
+                        }
+                }
+        }
+}
diff --git a/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfBuilderTest.java b/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfBuilderTest.java
index ceb46d6f..70cd386b 100644
--- a/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfBuilderTest.java
+++ b/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfBuilderTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfToDefinitionStringTest.java b/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfToDefinitionStringTest.java
index 9b469bb0..7be57745 100644
--- a/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfToDefinitionStringTest.java
+++ b/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfToDefinitionStringTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store-query/src/test/java/tools/refinery/store/query/tests/StructurallyEqualToTest.java b/subprojects/store-query/src/test/java/tools/refinery/store/query/tests/StructurallyEqualToTest.java
index a61e2b65..e292b3ab 100644
--- a/subprojects/store-query/src/test/java/tools/refinery/store/query/tests/StructurallyEqualToTest.java
+++ b/subprojects/store-query/src/test/java/tools/refinery/store/query/tests/StructurallyEqualToTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.tests;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/MismatchDescribingDnfEqualityChecker.java b/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/MismatchDescribingDnfEqualityChecker.java
index 685957c9..526832c4 100644
--- a/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/MismatchDescribingDnfEqualityChecker.java
+++ b/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/MismatchDescribingDnfEqualityChecker.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.tests;
 
 import org.hamcrest.Description;
diff --git a/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/QueryMatchers.java b/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/QueryMatchers.java
index bf1c1b74..8706ef70 100644
--- a/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/QueryMatchers.java
+++ b/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/QueryMatchers.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.tests;
 
 import org.hamcrest.Matcher;
diff --git a/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/StructurallyEqualTo.java b/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/StructurallyEqualTo.java
index a9a78f88..ba51c084 100644
--- a/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/StructurallyEqualTo.java
+++ b/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/StructurallyEqualTo.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.tests;
 
 import org.hamcrest.Description;
diff --git a/subprojects/store-reasoning/build.gradle.kts b/subprojects/store-reasoning/build.gradle.kts
index bb37d9d3..abad0491 100644
--- a/subprojects/store-reasoning/build.gradle.kts
+++ b/subprojects/store-reasoning/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-library")
 }
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/AnyPartialInterpretation.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/AnyPartialInterpretation.java
index ebe82c8b..000171a1 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/AnyPartialInterpretation.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/AnyPartialInterpretation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 import tools.refinery.store.reasoning.representation.AnyPartialSymbol;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/MergeResult.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/MergeResult.java
index 0d51598b..d3a216d8 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/MergeResult.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/MergeResult.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 public enum MergeResult {
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/PartialInterpretation.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/PartialInterpretation.java
index 4f195e97..4140d640 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/PartialInterpretation.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/PartialInterpretation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 import tools.refinery.store.reasoning.representation.PartialSymbol;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/Reasoning.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/Reasoning.java
index d7d0a999..3d3df2b2 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/Reasoning.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/Reasoning.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 import tools.refinery.store.reasoning.internal.ReasoningBuilderImpl;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningAdapter.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningAdapter.java
index de039dd9..8dedddf7 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningAdapter.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 import tools.refinery.store.adapter.ModelAdapter;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningBuilder.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningBuilder.java
index 4030d296..df7b6e4d 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningBuilder.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 import tools.refinery.store.adapter.ModelAdapterBuilder;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningStoreAdapter.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningStoreAdapter.java
index f6a6e414..c9795255 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningStoreAdapter.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningStoreAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 import tools.refinery.store.adapter.ModelStoreAdapter;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningAdapterImpl.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningAdapterImpl.java
index 0acf0d49..96514d36 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningAdapterImpl.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningAdapterImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.internal;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningBuilderImpl.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningBuilderImpl.java
index e11b14bf..49f7c7d3 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningBuilderImpl.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningBuilderImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.internal;
 
 import tools.refinery.store.adapter.AbstractModelAdapterBuilder;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningStoreAdapterImpl.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningStoreAdapterImpl.java
index ac06e68b..cdddd8d6 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningStoreAdapterImpl.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningStoreAdapterImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.internal;
 
 import tools.refinery.store.reasoning.ReasoningStoreAdapter;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/DnfLifter.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/DnfLifter.java
index 2b0e0f08..157f06e8 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/DnfLifter.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/DnfLifter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.lifting;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/ModalDnf.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/ModalDnf.java
index ec381bb8..16fb8fbf 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/ModalDnf.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/ModalDnf.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.lifting;
 
 import tools.refinery.store.query.dnf.Dnf;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/ModalConstraint.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/ModalConstraint.java
index 2fbb4607..7fa98104 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/ModalConstraint.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/ModalConstraint.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.literal;
 
 import tools.refinery.store.query.Constraint;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/Modality.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/Modality.java
index f0cb59de..96466d5c 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/Modality.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/Modality.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.literal;
 
 import tools.refinery.store.query.literal.CallPolarity;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/PartialLiterals.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/PartialLiterals.java
index f991f87f..0e46a795 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/PartialLiterals.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/PartialLiterals.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.literal;
 
 import tools.refinery.store.query.literal.CallLiteral;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialFunction.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialFunction.java
index e74cd58b..8d2cb5cf 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialFunction.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialFunction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.representation;
 
 public sealed interface AnyPartialFunction extends AnyPartialSymbol permits PartialFunction {
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialSymbol.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialSymbol.java
index 6ff5031b..788eef73 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialSymbol.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialSymbol.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.representation;
 
 import tools.refinery.store.representation.AnyAbstractDomain;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialFunction.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialFunction.java
index 59eeeefe..d58d026f 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialFunction.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialFunction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.representation;
 
 import tools.refinery.store.representation.AbstractDomain;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialRelation.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialRelation.java
index 9bae53a9..fc3dc074 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialRelation.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialRelation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.representation;
 
 import tools.refinery.store.query.Constraint;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialSymbol.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialSymbol.java
index 1af11f2e..3a08bdd8 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialSymbol.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialSymbol.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.representation;
 
 import tools.refinery.store.representation.AbstractDomain;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RelationRefinementAction.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RelationRefinementAction.java
index e8ed05a3..e4c702ea 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RelationRefinementAction.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RelationRefinementAction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.rule;
 
 import tools.refinery.store.reasoning.Reasoning;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/Rule.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/Rule.java
index c7b16d47..45b0f02e 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/Rule.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/Rule.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.rule;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleAction.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleAction.java
index 4753b8bc..97ea7313 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleAction.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleAction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.rule;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleActionExecutor.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleActionExecutor.java
index 7c51e3df..5d743869 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleActionExecutor.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleActionExecutor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.rule;
 
 import tools.refinery.store.reasoning.MergeResult;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleExecutor.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleExecutor.java
index c20645fc..32cf13ea 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleExecutor.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleExecutor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.rule;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/Seed.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/Seed.java
index 90633495..08079f12 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/Seed.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/Seed.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.seed;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/UniformSeed.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/UniformSeed.java
index a030f6ea..451d1513 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/UniformSeed.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/UniformSeed.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.seed;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/Advice.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/Advice.java
index 5cdfedf7..dd7a018d 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/Advice.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/Advice.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator;
 
 import tools.refinery.store.reasoning.representation.AnyPartialSymbol;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/AdviceSlot.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/AdviceSlot.java
index f3bd9c5e..bab20340 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/AdviceSlot.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/AdviceSlot.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator;
 
 import tools.refinery.store.representation.TruthValue;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslatedRelation.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslatedRelation.java
index 9bab80c9..4a5a8843 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslatedRelation.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslatedRelation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslationUnit.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslationUnit.java
index 24b93911..7f01122b 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslationUnit.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslationUnit.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionInterpretation.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionInterpretation.java
index b703f142..e7b67ae4 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionInterpretation.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionInterpretation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.base;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionTranslationUnit.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionTranslationUnit.java
index 36e2782a..d41e11c6 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionTranslationUnit.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionTranslationUnit.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.base;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/TranslatedBaseDecision.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/TranslatedBaseDecision.java
index 2294b4fd..4782eb46 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/TranslatedBaseDecision.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/TranslatedBaseDecision.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.base;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/EliminatedType.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/EliminatedType.java
index 1b8d7cc9..6e4728db 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/EliminatedType.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/EliminatedType.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/ExtendedTypeInfo.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/ExtendedTypeInfo.java
index 43b8e1dd..7a917dcf 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/ExtendedTypeInfo.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/ExtendedTypeInfo.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import org.jetbrains.annotations.NotNull;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMayTypeRelationView.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMayTypeRelationView.java
index 12c37c86..aea0a4b9 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMayTypeRelationView.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMayTypeRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMustTypeRelationView.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMustTypeRelationView.java
index 975f627e..6c995e3a 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMustTypeRelationView.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMustTypeRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredType.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredType.java
index a366e262..fd05158b 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredType.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredType.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/PreservedType.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/PreservedType.java
index 63dba964..0696f4c3 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/PreservedType.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/PreservedType.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalysisResult.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalysisResult.java
index 4f915108..fbf8a7c9 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalysisResult.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalysisResult.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 sealed interface TypeAnalysisResult permits EliminatedType, PreservedType {
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzer.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzer.java
index 62f8e750..e97ce954 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzer.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeHierarchyTranslationUnit.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeHierarchyTranslationUnit.java
index 4b0761f2..e1aa2014 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeHierarchyTranslationUnit.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeHierarchyTranslationUnit.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeInfo.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeInfo.java
index 313df4df..9f897e46 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeInfo.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeInfo.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredTypeTest.java b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredTypeTest.java
index a8df2312..1d76855c 100644
--- a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredTypeTest.java
+++ b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredTypeTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerExampleHierarchyTest.java b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerExampleHierarchyTest.java
index b2c1ef1b..05a476c6 100644
--- a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerExampleHierarchyTest.java
+++ b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerExampleHierarchyTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import org.junit.jupiter.api.BeforeEach;
diff --git a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTest.java b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTest.java
index b7b69ed8..d0ef9d57 100644
--- a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTest.java
+++ b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTester.java b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTester.java
index 56407730..2924816e 100644
--- a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTester.java
+++ b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTester.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store/build.gradle.kts b/subprojects/store/build.gradle.kts
index d62e5159..2c485020 100644
--- a/subprojects/store/build.gradle.kts
+++ b/subprojects/store/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-library")
         id("tools.refinery.gradle.jmh")
diff --git a/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutBenchmark.java b/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutBenchmark.java
index cdf3d3c8..485fda3d 100644
--- a/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutBenchmark.java
+++ b/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutBenchmark.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.benchmarks;
 
 import java.util.ArrayList;
diff --git a/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutExecutionPlan.java b/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutExecutionPlan.java
index 756d504e..edd4f53e 100644
--- a/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutExecutionPlan.java
+++ b/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutExecutionPlan.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.benchmarks;
 
 import java.util.Random;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/AbstractModelAdapterBuilder.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/AbstractModelAdapterBuilder.java
index 4c142217..70602ef5 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/AbstractModelAdapterBuilder.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/AbstractModelAdapterBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import tools.refinery.store.model.ModelStore;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/AdapterList.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/AdapterList.java
index 74bae6f0..e896d8d9 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/AdapterList.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/AdapterList.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import org.jetbrains.annotations.NotNull;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/AnyModelAdapterType.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/AnyModelAdapterType.java
index 37a247fe..f161a60b 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/AnyModelAdapterType.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/AnyModelAdapterType.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import java.util.Collection;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapter.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapter.java
index aa079e01..672007aa 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapter.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilder.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilder.java
index 64b3e59f..709cbb3e 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilder.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import tools.refinery.store.model.ModelStore;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilderFactory.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilderFactory.java
index 7c9b01bc..1d549d5b 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilderFactory.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilderFactory.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import tools.refinery.store.model.ModelStoreBuilder;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterType.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterType.java
index 82ddeb12..6255fe52 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterType.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterType.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelStoreAdapter.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelStoreAdapter.java
index 1eb40ada..bc5f7b6b 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelStoreAdapter.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelStoreAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/AnyVersionedMap.java b/subprojects/store/src/main/java/tools/refinery/store/map/AnyVersionedMap.java
index f82a8bb1..25fc91e6 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/AnyVersionedMap.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/AnyVersionedMap.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public sealed interface AnyVersionedMap extends Versioned permits VersionedMap {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/ContentHashCode.java b/subprojects/store/src/main/java/tools/refinery/store/map/ContentHashCode.java
index 8deeab23..cbea05e1 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/ContentHashCode.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/ContentHashCode.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public enum ContentHashCode {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/ContinousHashProvider.java b/subprojects/store/src/main/java/tools/refinery/store/map/ContinousHashProvider.java
index 75f1e2ab..8e451230 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/ContinousHashProvider.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/ContinousHashProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 import tools.refinery.store.map.internal.Node;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/Cursor.java b/subprojects/store/src/main/java/tools/refinery/store/map/Cursor.java
index b420585c..3bdca104 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/Cursor.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/Cursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 import java.util.Set;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/CursorAsIterator.java b/subprojects/store/src/main/java/tools/refinery/store/map/CursorAsIterator.java
index 65ae6648..c7e4d279 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/CursorAsIterator.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/CursorAsIterator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 import java.util.Iterator;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/Cursors.java b/subprojects/store/src/main/java/tools/refinery/store/map/Cursors.java
index fc8e628b..0a94d449 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/Cursors.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/Cursors.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public final class Cursors {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/DiffCursor.java b/subprojects/store/src/main/java/tools/refinery/store/map/DiffCursor.java
index 701f3ec8..4322e041 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/DiffCursor.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/DiffCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public interface DiffCursor<K, V> extends Cursor<K,V> {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/MapAsIterable.java b/subprojects/store/src/main/java/tools/refinery/store/map/MapAsIterable.java
index 6b986732..199b548f 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/MapAsIterable.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/MapAsIterable.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 import java.util.Iterator;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/Versioned.java b/subprojects/store/src/main/java/tools/refinery/store/map/Versioned.java
index 6a23e9d5..55720db3 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/Versioned.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/Versioned.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public interface Versioned {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMap.java b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMap.java
index 31985e94..9bbde24d 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMap.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMap.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public non-sealed interface VersionedMap<K, V> extends AnyVersionedMap {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStore.java b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStore.java
index a8d7fb1a..5aafa338 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStore.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStore.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 import java.util.Set;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreConfiguration.java b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreConfiguration.java
index 3856460d..b00cd961 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreConfiguration.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreConfiguration.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public class VersionedMapStoreConfiguration {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreImpl.java b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreImpl.java
index 113874e7..aade4aeb 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreImpl.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 import tools.refinery.store.map.internal.ImmutableNode;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/HashClash.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/HashClash.java
index 5402ed4a..61b3d1b8 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/HashClash.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/HashClash.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 enum HashClash {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/ImmutableNode.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/ImmutableNode.java
index 9397dede..03dffc15 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/ImmutableNode.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/ImmutableNode.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 import java.util.Arrays;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapCursor.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapCursor.java
index 91a71e3d..f34ec7bb 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapCursor.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 import tools.refinery.store.map.AnyVersionedMap;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapDiffCursor.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapDiffCursor.java
index 9cd78113..d31f1a05 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapDiffCursor.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapDiffCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 import tools.refinery.store.map.AnyVersionedMap;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/MutableNode.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/MutableNode.java
index 7c3cf7e8..1129ee5a 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/MutableNode.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/MutableNode.java
@@ -1,10 +1,15 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
+import tools.refinery.store.map.ContinousHashProvider;
+
 import java.util.Arrays;
 import java.util.Map;
 
-import tools.refinery.store.map.ContinousHashProvider;
-
 public class MutableNode<K, V> extends Node<K, V> {
         int cachedHash;
         protected Object[] content;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/Node.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/Node.java
index 2260cd5b..958d645f 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/Node.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/Node.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 import java.util.Map;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/OldValueBox.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/OldValueBox.java
index 5534c703..354af51d 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/OldValueBox.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/OldValueBox.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 public class OldValueBox<V>{
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/VersionedMapImpl.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/VersionedMapImpl.java
index 301bcb95..7abece0d 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/VersionedMapImpl.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/VersionedMapImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 import tools.refinery.store.map.*;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/AnyInterpretation.java b/subprojects/store/src/main/java/tools/refinery/store/model/AnyInterpretation.java
index d18ba71d..f906b48a 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/AnyInterpretation.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/AnyInterpretation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.representation.AnySymbol;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/Interpretation.java b/subprojects/store/src/main/java/tools/refinery/store/model/Interpretation.java
index 55949d0c..26ad9a69 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/Interpretation.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/Interpretation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/InterpretationListener.java b/subprojects/store/src/main/java/tools/refinery/store/model/InterpretationListener.java
index 73950779..6f7b24c1 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/InterpretationListener.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/InterpretationListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.tuple.Tuple;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/Model.java b/subprojects/store/src/main/java/tools/refinery/store/model/Model.java
index 6ca1ac7b..f4131756 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/Model.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/Model.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.adapter.ModelAdapter;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/ModelDiffCursor.java b/subprojects/store/src/main/java/tools/refinery/store/model/ModelDiffCursor.java
index 97bf2039..7b236891 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/ModelDiffCursor.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/ModelDiffCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.map.DiffCursor;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/ModelListener.java b/subprojects/store/src/main/java/tools/refinery/store/model/ModelListener.java
index f67540bb..a9ad8cfd 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/ModelListener.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/ModelListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 public interface ModelListener {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/ModelStore.java b/subprojects/store/src/main/java/tools/refinery/store/model/ModelStore.java
index 2e7e62c3..a72399f7 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/ModelStore.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/ModelStore.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.adapter.ModelAdapterType;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/ModelStoreBuilder.java b/subprojects/store/src/main/java/tools/refinery/store/model/ModelStoreBuilder.java
index 289099da..d9354bdb 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/ModelStoreBuilder.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/ModelStoreBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.adapter.ModelAdapterBuilder;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProvider.java b/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProvider.java
index 4bcf9ff4..fe1c2ab5 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProvider.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.map.ContinousHashProvider;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProviderBitMagic.java b/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProviderBitMagic.java
index 33059a1b..14116a90 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProviderBitMagic.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProviderBitMagic.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.map.ContinousHashProvider;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelAction.java b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelAction.java
index f68859db..dbd95d80 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelAction.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelAction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.internal;
 
 public enum ModelAction {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelImpl.java b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelImpl.java
index 9eb438c4..50a408da 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelImpl.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.internal;
 
 import tools.refinery.store.adapter.AdapterList;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreBuilderImpl.java b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreBuilderImpl.java
index 79f7195d..70bccb96 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreBuilderImpl.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreBuilderImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.internal;
 
 import tools.refinery.store.adapter.AdapterList;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreImpl.java b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreImpl.java
index e8c205e4..bfae7181 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreImpl.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.internal;
 
 import tools.refinery.store.adapter.AdapterList;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/internal/SymbolEquivalenceClass.java b/subprojects/store/src/main/java/tools/refinery/store/model/internal/SymbolEquivalenceClass.java
index 5bf1b90d..136f2976 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/internal/SymbolEquivalenceClass.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/internal/SymbolEquivalenceClass.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.internal;
 
 import tools.refinery.store.representation.Symbol;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/internal/VersionedInterpretation.java b/subprojects/store/src/main/java/tools/refinery/store/model/internal/VersionedInterpretation.java
index 6d82f5d7..86101ce3 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/internal/VersionedInterpretation.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/internal/VersionedInterpretation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.internal;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/AbstractDomain.java b/subprojects/store/src/main/java/tools/refinery/store/representation/AbstractDomain.java
index 18903ead..52c740e8 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/AbstractDomain.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/AbstractDomain.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation;
 
 import java.util.Optional;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/AnyAbstractDomain.java b/subprojects/store/src/main/java/tools/refinery/store/representation/AnyAbstractDomain.java
index 4c428a1e..c354fab7 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/AnyAbstractDomain.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/AnyAbstractDomain.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation;
 
 public sealed interface AnyAbstractDomain permits AbstractDomain {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/AnySymbol.java b/subprojects/store/src/main/java/tools/refinery/store/representation/AnySymbol.java
index 20b9eead..b2377905 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/AnySymbol.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/AnySymbol.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation;
 
 public sealed interface AnySymbol permits Symbol {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/Symbol.java b/subprojects/store/src/main/java/tools/refinery/store/representation/Symbol.java
index 30b1c03f..aad88921 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/Symbol.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/Symbol.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation;
 
 public record Symbol<T>(String name, int arity, Class<T> valueType, T defaultValue) implements AnySymbol {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValue.java b/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValue.java
index b7893fd3..40baf9a5 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValue.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValue.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation;
 
 public enum TruthValue {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValueDomain.java b/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValueDomain.java
index 29858bce..89f8dd19 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValueDomain.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValueDomain.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation;
 
 import java.util.Optional;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityInterval.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityInterval.java
index 273d0de7..704ca2fc 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityInterval.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityInterval.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 public sealed interface CardinalityInterval permits NonEmptyCardinalityInterval, EmptyCardinalityInterval {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityIntervals.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityIntervals.java
index e1a08bf9..ad16a3e8 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityIntervals.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityIntervals.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 public final class CardinalityIntervals {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/EmptyCardinalityInterval.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/EmptyCardinalityInterval.java
index ab3ad9d1..49911c29 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/EmptyCardinalityInterval.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/EmptyCardinalityInterval.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 public final class EmptyCardinalityInterval implements CardinalityInterval {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinality.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinality.java
index 381c8a57..82afdbbc 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinality.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinality.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.jetbrains.annotations.NotNull;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/NonEmptyCardinalityInterval.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/NonEmptyCardinalityInterval.java
index 32b3786f..38bd53bf 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/NonEmptyCardinalityInterval.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/NonEmptyCardinalityInterval.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import java.util.function.BinaryOperator;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UnboundedUpperCardinality.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UnboundedUpperCardinality.java
index 593bc322..a5634020 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UnboundedUpperCardinality.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UnboundedUpperCardinality.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.jetbrains.annotations.NotNull;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinalities.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinalities.java
index d850fdc9..1e18dde0 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinalities.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinalities.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 public final class UpperCardinalities {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinality.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinality.java
index c6e31cb7..5dbaa922 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinality.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinality.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 public sealed interface UpperCardinality extends Comparable<UpperCardinality> permits FiniteUpperCardinality,
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple.java
index 51e2895a..6700417a 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 public sealed interface Tuple permits Tuple0, Tuple1, Tuple2, Tuple3, Tuple4, TupleN {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple0.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple0.java
index 266e2cca..1451099c 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple0.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple0.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 import static tools.refinery.store.tuple.TupleConstants.TUPLE_BEGIN;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple1.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple1.java
index bdcc47b5..cda145d7 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple1.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple1.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 import tools.refinery.store.model.TupleHashProvider;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple2.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple2.java
index fc0fbd8e..b669674b 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple2.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple2.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 import static tools.refinery.store.tuple.TupleConstants.*;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple3.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple3.java
index a6ec17b0..542ed328 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple3.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple3.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 import static tools.refinery.store.tuple.TupleConstants.*;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple4.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple4.java
index 66cef32b..121a15f6 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple4.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple4.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 import static tools.refinery.store.tuple.TupleConstants.*;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleConstants.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleConstants.java
index 3d95a655..f7d27848 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleConstants.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleConstants.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 final class TupleConstants {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleN.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleN.java
index 512bab49..b66af491 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleN.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleN.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 import java.util.Arrays;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/util/CollectionsUtil.java b/subprojects/store/src/main/java/tools/refinery/store/util/CollectionsUtil.java
index 841d0dfa..adecd79b 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/util/CollectionsUtil.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/util/CollectionsUtil.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.util;
 
 import java.util.Iterator;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/util/CycleDetectingMapper.java b/subprojects/store/src/main/java/tools/refinery/store/util/CycleDetectingMapper.java
index 8a151d01..78ad2ad7 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/util/CycleDetectingMapper.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/util/CycleDetectingMapper.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.util;
 
 import java.util.*;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/MapUnitTests.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/MapUnitTests.java
index 77c62305..153f2e78 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/MapUnitTests.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/MapUnitTests.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/CommitFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/CommitFuzzTest.java
index 1f9d022f..eabe5bd1 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/CommitFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/CommitFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import static org.junit.jupiter.api.Assertions.fail;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/ContentEqualsFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/ContentEqualsFuzzTest.java
index 93ecfec3..b0502a2b 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/ContentEqualsFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/ContentEqualsFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import org.junit.jupiter.api.Tag;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/DiffCursorFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/DiffCursorFuzzTest.java
index e6334224..8274336e 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/DiffCursorFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/DiffCursorFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import static org.junit.jupiter.api.Assertions.fail;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadFuzzTest.java
index 1ab431a8..ab2b9435 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadTestRunnable.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadTestRunnable.java
index f77f9ee5..502c8362 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadTestRunnable.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadTestRunnable.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import java.util.ArrayList;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableFuzzTest.java
index d40c49c4..32dde0da 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import static org.junit.jupiter.api.Assertions.fail;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableImmutableCompareFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableImmutableCompareFuzzTest.java
index 410705a2..347c49be 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableImmutableCompareFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableImmutableCompareFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import static org.junit.jupiter.api.Assertions.fail;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/RestoreFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/RestoreFuzzTest.java
index 2e29a03f..f7b9d61e 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/RestoreFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/RestoreFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import static org.junit.jupiter.api.Assertions.fail;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/SharedStoreFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/SharedStoreFuzzTest.java
index 914a0f63..4b4172d0 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/SharedStoreFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/SharedStoreFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import java.util.HashMap;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtils.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtils.java
index e75d7f5a..a819d348 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtils.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtils.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz.utils;
 
 import java.util.Arrays;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtilsTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtilsTest.java
index 72f2a46c..dc621574 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtilsTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtilsTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz.utils;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/utils/MapTestEnvironment.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/utils/MapTestEnvironment.java
index 2d03ebaf..f861f496 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/utils/MapTestEnvironment.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/utils/MapTestEnvironment.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.utils;
 
 import tools.refinery.store.map.*;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/model/hashtests/HashEfficiencyTest.java b/subprojects/store/src/test/java/tools/refinery/store/model/hashtests/HashEfficiencyTest.java
index bb083805..4d4f5e26 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/model/hashtests/HashEfficiencyTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/model/hashtests/HashEfficiencyTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.hashtests;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/model/tests/ModelTest.java b/subprojects/store/src/test/java/tools/refinery/store/model/tests/ModelTest.java
index 9536a444..1017ff28 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/model/tests/ModelTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/model/tests/ModelTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.tests;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalTest.java
index 96fdc49e..6a66fa84 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.params.ParameterizedTest;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalsTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalsTest.java
index 4a9ef8da..9fe76159 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalsTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalsTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/EmptyCardinalityIntervalTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/EmptyCardinalityIntervalTest.java
index e8b77b9f..24a788a8 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/EmptyCardinalityIntervalTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/EmptyCardinalityIntervalTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteCardinalityIntervalTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteCardinalityIntervalTest.java
index 9a190818..6cf56fae 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteCardinalityIntervalTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteCardinalityIntervalTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinalityTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinalityTest.java
index 90c21759..7c641c47 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinalityTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinalityTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalitiesTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalitiesTest.java
index 3c7c0320..e61f7b36 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalitiesTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalitiesTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalityTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalityTest.java
index e87ce29b..10b4dd20 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalityTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalityTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.params.ParameterizedTest;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/util/CollectionsUtilTests.java b/subprojects/store/src/test/java/tools/refinery/store/util/CollectionsUtilTests.java
index 171be0e5..8d50fa8a 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/util/CollectionsUtilTests.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/util/CollectionsUtilTests.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.util;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;