Execute integration tests with (LTS) Java versions

After building with JDK 8 we should check whether
everything runs with other current JDK LTS + latest
versions.

.github/workflows/gradle-build.yml

@@ -11,6 +11,7 @@ jobs:
       - uses: actions/setup-java@v3
         with:
           distribution: temurin
+          # Always build with JDK 8 initially
           java-version: 8
 
       - name: Setup Gradle
@@ -19,7 +20,7 @@ jobs:
           cache-read-only: ${{ github.ref != 'refs/heads/main' && github.ref != 'refs/heads/develop' }}
 
       - name: Execute Gradle build
-        run: ./gradlew clean check integrationTest --scan -stacktrace
+        run: ./gradlew clean check integrationTest --scan --stacktrace
 
       - name: 'Publish Test Results'
         uses: EnricoMi/publish-unit-test-result-action/composite@v2
@@ -35,3 +36,20 @@ jobs:
           coverage_report_name: Coverage
           coverage_report_title: JaCoCo
           github_token: ${{ secrets.GITHUB_TOKEN }}
+
+  test-java-versions:
+    strategy:
+      matrix:
+        java-test-version: [ 11, 17, 21, 22 ]
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/setup-java@v3
+        with:
+          distribution: temurin
+          # Always build with JDK 8 initially
+          java-version: ${{ matrix.java-test-version }}
+      - name: Execute integration test
+        run: |
+          find build/maven-repo -type f -ls
+          ./gradlew --version
+          ./gradlew integrationTestOnly

build.gradle

@@ -91,9 +91,9 @@ configure(subprojects) {
     // apply plugin: 'codenarc'
 }
 
-tasks.register("integrationTest") {
+tasks.register("integrationTestOnly") {
     group("Verification")
-    description("Run overall integration tests")
+    description("Run overall integration tests (no publish)")
 
     final String INTEGRATION_TEST_DIRECTORY = "integration-test/gradle-plugin"
 
@@ -108,10 +108,19 @@ tasks.register("integrationTest") {
         assert testIndex.exists()
     }
 }
-integrationTest.dependsOn(
+integrationTestOnly.mustRunAfter(
         ':htmlSanityCheck-core:publishAllPublicationsToMyLocalRepositoryForFullIntegrationTestsRepository',
         ':htmlSanityCheck-gradle-plugin:publishAllPublicationsToMyLocalRepositoryForFullIntegrationTestsRepository'
 )
+tasks.register("integrationTest") {
+    group("Verification")
+    description("Run overall integration tests (and publish first)")
+}
+integrationTest.dependsOn(
+        ':htmlSanityCheck-core:publishAllPublicationsToMyLocalRepositoryForFullIntegrationTestsRepository',
+        ':htmlSanityCheck-gradle-plugin:publishAllPublicationsToMyLocalRepositoryForFullIntegrationTestsRepository',
+        'integrationTestOnly'
+)
 
 /*
  * Copyright Gernot Starke and aim42 contributors.