Try setup-java, the github action.

.forgejo/workflows/maven-build.yaml

@@ -2,13 +2,12 @@ on: [push]
 jobs:
   maven-build:
     runs-on: docker
-    container:
-      image: maven:3.9-eclipse-temurin-25 
     steps:
-      - name: Setup node
-        uses: actions/setup-node@v6
+      - name: Setup Java
+        uses: actions/setup-java@v5
         with:
-          node-version: '24'
+          distribution: 'temurin'
+          java-version: 25
       - name: Checkout repository
         uses: actions/checkout@v6
       - name: Run maven build