build: make sure slf4j is used instead of log4j

1 files changed, 8 insertions, 2 deletions

diff --git a/subprojects/language-web/build.gradle b/subprojects/language-web/build.gradle
index 6be4d5e8..a1d4753a 100644
--- a/subprojects/language-web/build.gradle
+++ b/subprojects/language-web/build.gradle
@@ -8,18 +8,24 @@ configurations {
                 canBeConsumed = false
                 canBeResolved = true
         }
+        
+        all {
+                // Use log4j-over-slf4j instead of log4j 1.x
+                exclude group: 'log4j', module: 'log4j'
+        }
 }
 
 dependencies {
         implementation project(':refinery-language')
         implementation project(':refinery-language-ide')
-        implementation libs.xtend.lib
-        implementation libs.xtext.web
         implementation libs.jetty.server
         implementation libs.jetty.servlet
         implementation libs.jetty.websocket.server
+        implementation libs.slf4j.api
         implementation libs.slf4j.simple
         implementation libs.slf4j.log4j
+        implementation libs.xtend.lib
+        implementation libs.xtext.web
         webapp project(path: ':refinery-frontend', configuration: 'productionAssets')
         testImplementation testFixtures(project(':refinery-language'))
         testImplementation libs.jetty.websocket.client