Update .github/workflows/build.yml

.github/workflows/build.yml

@@ -20,13 +20,17 @@ jobs:
   build:
 
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        # follows https://en.wikipedia.org/wiki/Java_version_history#Release_table
+        java-versions: ['8', '11', '17', '21']
 
     steps:
     - uses: actions/checkout@v3
-    - name: Set up JDK 11
+    - name: Set up Java ${{ matrix.java-versions }}
       uses: actions/setup-java@v3
       with:
-        java-version: '11'
+        java-version: ${{ matrix.java-versions }}
         distribution: 'temurin'
     - name: Build with Gradle
       uses: gradle/gradle-build-action@fec4a42eb0c83154e5c9590748ba8337949c5701

build.gradle.kts

@@ -21,7 +21,7 @@ dependencies {
     // Use the Kotlin JDK 8 standard library.
     implementation(kotlin("stdlib-jdk8"))
     // Gson
-    implementation("com.google.code.gson:gson:2.10.1")
+    implementation("com.google.code.gson:gson:2.9.0")
 
     testImplementation(kotlin("test"))
 }