Always run CI on the latest Java

renovate.json → .github/renovate.json5

@@ -29,13 +29,31 @@
       "allowedVersions": "!/(-alpha|-Alpha|-ALPHA|-beta|-Beta|-BETA|-milestone|-m|-SNAPSHOT)/"
     }
   ],
+  ignorePresets: [
+    // Ensure we get the latest version and are not pinned to old versions.
+    'workarounds:javaLTSVersions',
+  ],
   "customManagers": [
     {
       "customType": "regex",
       "fileMatch": ["\\.versions.toml$"],
       "matchStrings": ["(^|\n)(?<depName>gradle) *= *\"(?<currentValue>.*)\""],
       "depNameTemplate": "gradle",
       "datasourceTemplate": "gradle-version"
-    }
+    },
+    // Update .java-version file with the latest JDK version.
+    {
+      customType: 'regex',
+      fileMatch: [
+        '\\.java-version$',
+      ],
+      matchStrings: [
+        '(?<currentValue>.*)\\n',
+      ],
+      datasourceTemplate: 'java-version',
+      depNameTemplate: 'java',
+      // Only write the major version.
+      extractVersionTemplate: '^(?<version>\\d+)',
+    },
   ]
 }

.github/workflows/.java-version

@@ -0,0 +1 @@
+24

.github/workflows/build.yml

@@ -12,29 +12,21 @@ concurrency:
 
 jobs:
   build:
-    name: JDK ${{ matrix.java_version }}, Config ${{ matrix.test_config_method }}
+    name: Config ${{ matrix.test_config_method }}
     runs-on: ubuntu-latest
 
     strategy:
       matrix:
-        java_version: [11, 17, 24]
         test_config_method: ["DSL", "PROPERTIES", "BASE"]
 
     steps:
       - name: Checkout
         uses: actions/checkout@v5
 
-      - name: Install JDK ${{ matrix.java_version }}
-        uses: actions/setup-java@v5
+      - uses: actions/setup-java@v5
         with:
           distribution: zulu
-          java-version: ${{ matrix.java_version }}
-
-      - name: Install JDK 24
-        uses: actions/setup-java@v5
-        with:
-          distribution: zulu
-          java-version: 24
+          java-version-file: .github/workflows/.java-version
 
       - name: Accept Android SDK license
         run: echo -e "24333f8a63b6825ea9c5514f83c2829b004d1fee\n" > "$ANDROID_HOME/licenses/android-sdk-license"
@@ -43,10 +35,9 @@ jobs:
 
       - name: Run ktlint
         run: ./kotlinw ktlint.main.kts --fail-on-changes
-        if: ${{ matrix.java_version != '11' }}
 
       - name: Build with Gradle
-        run: ./gradlew build --stacktrace -DtestJavaVersion=${{ matrix.java_version }} -DtestConfigMethod=${{ matrix.test_config_method }}
+        run: ./gradlew build --stacktrace -DtestConfigMethod=${{ matrix.test_config_method }}
 
   # Status check that is required in branch protection rules.
   build-status:

.github/workflows/publish-release.yml

@@ -21,7 +21,7 @@ jobs:
         uses: actions/setup-java@v5
         with:
           distribution: zulu
-          java-version: 11
+          java-version-file: .github/workflows/.java-version
 
       - name: Set version for tag
         run: |

.github/workflows/publish-snapshot.yml

@@ -27,7 +27,7 @@ jobs:
         uses: actions/setup-java@v5
         with:
           distribution: zulu
-          java-version: 11
+          java-version-file: .github/workflows/.java-version
 
       - name: Set version
         run: |

plugin/build.gradle.kts

@@ -141,13 +141,6 @@ tasks.validatePlugins {
   enableStricterValidation = true
 }
 
-tasks.whenTaskAdded {
-  if (name.contains("lint") && this::class.java.name.contains("com.android.build")) {
-    // TODO: lints can be run on Java 17 or above, remove this once we bump the min Java version to 17.
-    enabled = JavaVersion.current() >= JavaVersion.VERSION_17
-  }
-}
-
 val integrationTest by tasks.registering(Test::class) {
   dependsOn(
     tasks.publishToMavenLocal,
@@ -161,13 +154,6 @@ val integrationTest by tasks.registering(Test::class) {
   testClassesDirs = integrationTestSourceSet.output.classesDirs
   classpath = integrationTestSourceSet.runtimeClasspath
 
-  val testJavaVersion = System.getProperty("testJavaVersion")
-  if (testJavaVersion != null) {
-    javaLauncher = javaToolchains.launcherFor {
-      languageVersion = JavaLanguageVersion.of(testJavaVersion.toInt())
-    }
-  }
-
   useJUnitPlatform()
   testLogging.showStandardStreams = true
   maxHeapSize = "2g"