Update Gradle to 8.5 (#22)

* Update Gradle to 8.5

* Also bump the Github workflow.

* Adapt release workflow to JDK 17 and add warning-mode fail.

* Use Eclipse Temurin

* Add JDK 21, run release on latest LTS.

* Fixed deprecations.

.github/workflows/build.yml

@@ -4,12 +4,12 @@ jobs:
   build:
     strategy:
       matrix:
-        java: [8-jdk, 11-jdk, 15-jdk]
-    runs-on: ubuntu-20.04
+        java: [8-jdk, 11-jdk, 17-jdk, 21-jdk]
+    runs-on: ubuntu-22.04
     container:
-      image: openjdk:${{ matrix.java }}
+      image: eclipse-temurin:${{ matrix.java }}
       options: --user root
     steps:
       - uses: actions/checkout@v1
       - uses: gradle/wrapper-validation-action@v1
-      - run: ./gradlew build --stacktrace
+      - run: ./gradlew build --stacktrace --warning-mode fail

.github/workflows/release.yml

@@ -2,15 +2,15 @@ name: Release
 on: [workflow_dispatch] # Manual trigger
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     container:
-      image: openjdk:15-jdk
+      image: eclipse-temurin:21-jdk
       options: --user root
     steps:
       - uses: actions/checkout@v1
       - uses: gradle/wrapper-validation-action@v1
-      - run: ./gradlew build publish --stacktrace
+      - run: ./gradlew build publish --stacktrace --warning-mode fail
         env:
           MAVEN_URL: ${{ secrets.MAVEN_URL }}
           MAVEN_USERNAME: ${{ secrets.MAVEN_USERNAME }}
-          MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
+          MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}

build.gradle

@@ -14,9 +14,6 @@ allprojects {
     version = "2.3.0"
     version = version + (ENV.GITHUB_ACTIONS ? "" : "+local")
 
-    sourceCompatibility = 1.8
-    targetCompatibility = 1.8
-
     repositories {
         mavenCentral()
     }
@@ -31,6 +28,11 @@ allprojects {
         testImplementation 'org.junit.jupiter:junit-jupiter-api:5.+'
         testImplementation 'org.junit.jupiter:junit-jupiter-params:5.+'
         testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.+'
+        testRuntimeOnly 'org.junit.platform:junit-platform-launcher:1.10.+'
+    }
+
+    test {
+        useJUnitPlatform()
     }
 
     tasks.withType(JavaCompile).configureEach {
@@ -43,6 +45,8 @@ allprojects {
 
     java {
         withSourcesJar()
+        sourceCompatibility = 1.8
+        targetCompatibility = 1.8
     }
 
     task javadocJar(type: Jar, dependsOn: javadoc) {

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists