chore(deps): downgrade to Java 17

Java 19 is out of support, but Gradle current does not run on Java 20:
https://github.com/gradle/gradle/issues/23488

To avoid the complexity of running the build tool on a different JDK than the
application, we temporarily remove code that depends on experimental Java 19 or
Java 20 features.

Revert once the build can run on Java 20.

1 files changed, 1 insertions, 5 deletions

diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/java-conventions.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/java-conventions.gradle.kts
index d8deffae..7c7cbabd 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/java-conventions.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/java-conventions.gradle.kts
@@ -43,14 +43,10 @@ dependencies {
 }
 
 java.toolchain {
-        languageVersion.set(JavaLanguageVersion.of(19))
+        languageVersion.set(JavaLanguageVersion.of(17))
 }
 
 tasks {
-        withType(JavaCompile::class) {
-                options.release.set(17)
-        }
-
         test {
                 useJUnitPlatform {
                         excludeTags("slow")