Upgrade Gradle

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
       - uses: sdkman/sdkman-action@master
         with:
           candidate: gradle
-          version: 7.4.2
+          version: 8.3
 
       - name: Install Kotlin
         run: |

Dockerfile

@@ -1,4 +1,4 @@
-FROM gradle:7.4.2-jdk8
+FROM gradle:8.3.0-jdk8
 
 MAINTAINER Franco Meloni
 
@@ -17,7 +17,7 @@ RUN apt-get update && \
 # Install danger-kotlin globally
 COPY . /usr/local/_danger-kotlin
 RUN cd /usr/lib && \
-    wget -q https://github.com/JetBrains/kotlin/releases/download/v1.7.0/kotlin-compiler-1.7.0.zip && \
+    wget -q https://github.com/JetBrains/kotlin/releases/download/v1.8.0/kotlin-compiler-1.8.0.zip && \
     unzip kotlin-compiler-*.zip && \
     rm kotlin-compiler-*.zip && \
     cd /usr/local/_danger-kotlin && \

danger-kotlin-kts/build.gradle

@@ -36,6 +36,11 @@ compileTestKotlin {
     kotlinOptions.jvmTarget = "1.8"
 }
 
+tasks.withType(JavaCompile).configureEach {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}
+
 publishing {
     publications {
         maven(MavenPublication) {

danger-kotlin-library/build.gradle

@@ -28,6 +28,11 @@ compileTestKotlin {
     kotlinOptions.jvmTarget = "1.8"
 }
 
+tasks.withType(JavaCompile).configureEach {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}
+
 publishing {
     publications {
         maven(MavenPublication) {

danger-kotlin-sdk/build.gradle

@@ -21,3 +21,8 @@ compileKotlin {
 compileTestKotlin {
     kotlinOptions.jvmTarget = "1.8"
 }
+
+tasks.withType(JavaCompile).configureEach {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}