Fix Java 21 compatibilities (#1920)

.github/workflows/ci.yml

@@ -42,7 +42,8 @@ jobs:
       fail-fast: false
       matrix:
         kind: [maven, gradle]
-        jre: [11, 17]
+        # Test on the latest Java version once Gradle & Maven support it.
+        jre: [11, 17, 21]
         os: [ubuntu-latest]
         include:
           # test windows at the diagonals of the above matrix

CHANGES.md

@@ -10,6 +10,9 @@ This document is intended for Spotless developers.
 We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (starting after version `1.27.0`).
 
 ## [Unreleased]
+### Changes
+* Use palantir-java-format 2.38.0 on Java 21. ([#1920](https://github.com/diffplug/spotless/pull/1920))
+* Bump default `googleJavaFormat` version to latest `1.17.0` -> `1.18.1`. ([#1920](https://github.com/diffplug/spotless/pull/1920))
 
 ## [2.43.0] - 2023-11-27
 ### Added

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

lib/build.gradle

@@ -84,7 +84,7 @@ dependencies {
 	gherkinCompileOnly 'io.cucumber:gherkin-utils:8.0.2'
 	gherkinCompileOnly 'org.slf4j:slf4j-api:2.0.0'
 	// googleJavaFormat
-	googleJavaFormatCompileOnly 'com.google.googlejavaformat:google-java-format:1.17.0'
+	googleJavaFormatCompileOnly 'com.google.googlejavaformat:google-java-format:1.18.1'
 	// gson
 	gsonCompileOnly 'com.google.code.gson:gson:2.10.1'
 	// jackson

lib/src/main/java/com/diffplug/spotless/java/GoogleJavaFormatStep.java

@@ -35,7 +35,7 @@ private GoogleJavaFormatStep() {}
 	private static final boolean DEFAULT_REORDER_IMPORTS = false;
 	private static final boolean DEFAULT_FORMAT_JAVADOC = true;
 	static final String NAME = "google-java-format";
-	static final String MAVEN_COORDINATE = "com.google.googlejavaformat:google-java-format";
+	public static final String MAVEN_COORDINATE = "com.google.googlejavaformat:google-java-format";
 
 	/** Creates a step which formats everything - code, import order, and unused imports. */
 	public static FormatterStep create(Provisioner provisioner) {
@@ -83,7 +83,7 @@ public static FormatterStep create(String groupArtifact, String version, String
 			.addMin(11, "1.8") // we only support google-java-format >= 1.8 due to api changes
 			.addMin(16, "1.10.0") // java 16 requires at least 1.10.0 due to jdk api changes in JavaTokenizer
 			.addMin(21, "1.17.0") // java 21 requires at least 1.17.0 due to https://github.com/google/google-java-format/issues/898
-			.add(11, "1.17.0"); // default version
+			.add(11, "1.18.1"); // default version
 
 	public static String defaultGroupArtifact() {
 		return MAVEN_COORDINATE;

lib/src/main/java/com/diffplug/spotless/java/PalantirJavaFormatStep.java

@@ -29,8 +29,8 @@ private PalantirJavaFormatStep() {}
 
 	private static final String DEFAULT_STYLE = "PALANTIR";
 	private static final String NAME = "palantir-java-format";
-	private static final String MAVEN_COORDINATE = "com.palantir.javaformat:palantir-java-format:";
-	private static final Jvm.Support<String> JVM_SUPPORT = Jvm.<String> support(NAME).add(8, "1.1.0").add(11, "2.28.0");
+	public static final String MAVEN_COORDINATE = "com.palantir.javaformat:palantir-java-format:";
+	private static final Jvm.Support<String> JVM_SUPPORT = Jvm.<String> support(NAME).add(8, "1.1.0").add(11, "2.28.0").add(21, "2.38.0");
 
 	/** Creates a step which formats everything - code, import order, and unused imports. */
 	public static FormatterStep create(Provisioner provisioner) {

plugin-gradle/CHANGES.md

@@ -3,6 +3,9 @@
 We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (starting after version `3.27.0`).
 
 ## [Unreleased]
+### Changes
+* Use palantir-java-format 2.38.0 on Java 21. ([#1920](https://github.com/diffplug/spotless/pull/1920))
+* Bump default `googleJavaFormat` version to latest `1.17.0` -> `1.18.1`. ([#1920](https://github.com/diffplug/spotless/pull/1920))
 ### Fixed
 * Make `KtfmtConfig.ConfigurableStyle#configure` public. ([#1926](https://github.com/diffplug/spotless/pull/1926))
 * **BREAKING CHANGE** `6.23.0` made breaking changes to the ABI of the `KotlinExtension` and `GroovyExtension`. Those are reflected retroactively now.

plugin-gradle/src/main/java/com/diffplug/gradle/spotless/GradleProvisioner.java

@@ -26,6 +26,7 @@
 import org.gradle.api.artifacts.Configuration;
 import org.gradle.api.artifacts.ConfigurationContainer;
 import org.gradle.api.artifacts.dsl.DependencyHandler;
+import org.gradle.api.attributes.Attribute;
 import org.gradle.api.attributes.Bundling;
 import org.gradle.api.attributes.Category;
 import org.gradle.api.initialization.dsl.ScriptHandler;
@@ -35,6 +36,8 @@
 import com.diffplug.common.base.Unhandled;
 import com.diffplug.common.collect.ImmutableList;
 import com.diffplug.spotless.Provisioner;
+import com.diffplug.spotless.java.GoogleJavaFormatStep;
+import com.diffplug.spotless.java.PalantirJavaFormatStep;
 
 /** Should be package-private. */
 class GradleProvisioner {
@@ -116,14 +119,26 @@ private static Provisioner forConfigurationContainer(Project project, Configurat
 						+ new Request(withTransitives, mavenCoords).hashCode());
 				mavenCoords.stream()
 						.map(dependencies::create)
-						.forEach(config.getDependencies()::add);
+						.forEach(dependency -> {
+							config.getDependencies().add(dependency);
+							String coordinate = dependency.getGroup() + ":" + dependency.getName();
+							if (coordinate.startsWith(GoogleJavaFormatStep.MAVEN_COORDINATE) ||
+									coordinate.startsWith(PalantirJavaFormatStep.MAVEN_COORDINATE)) {
+								// Use Guava 32.1.3, see https://github.com/google/guava/issues/6657.
+								// TODO: May remove this after https://github.com/google/google-java-format/pull/996 and https://github.com/palantir/palantir-java-format/issues/957 are released.
+								config.getDependencies().add(dependencies.create("com.google.guava:guava:32.1.3-jre"));
+							}
+						});
 				config.setDescription(mavenCoords.toString());
 				config.setTransitive(withTransitives);
 				config.setCanBeConsumed(false);
 				config.setVisible(false);
 				config.attributes(attr -> {
 					attr.attribute(Category.CATEGORY_ATTRIBUTE, project.getObjects().named(Category.class, Category.LIBRARY));
 					attr.attribute(Bundling.BUNDLING_ATTRIBUTE, project.getObjects().named(Bundling.class, Bundling.EXTERNAL));
+					// TODO: This is a copy-paste from org.gradle.api.attributes.java.TargetJvmEnvironment which is added in Gradle 7.0, remove this once we drop support for Gradle 6.x.
+					// Add this attribute for resolving Guava dependency, see https://github.com/google/guava/issues/6801.
+					attr.attribute(Attribute.of("org.gradle.jvm.environment", String.class), "standard-jvm");
 				});
 				return config.resolve();
 			} catch (Exception e) {

plugin-gradle/src/test/java/com/diffplug/gradle/spotless/ConfigurationCacheTest.java

@@ -20,6 +20,8 @@
 import org.gradle.testkit.runner.BuildResult;
 import org.gradle.testkit.runner.GradleRunner;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.EnabledForJreRange;
+import org.junit.jupiter.api.condition.JRE;
 
 public class ConfigurationCacheTest extends GradleIntegrationHarness {
 	@Override
@@ -63,6 +65,7 @@ public void helpConfiguresIfTasksAreCreated() throws IOException {
 	}
 
 	@Test
+	@EnabledForJreRange(max = JRE.JAVA_20)
 	public void jvmLocalCache() throws IOException {
 		setFile("build.gradle").toLines(
 				"plugins {",
@@ -91,6 +94,10 @@ public void jvmLocalCache() throws IOException {
 		gradleRunner().withArguments("spotlessApply").build();
 		assertFile("test.java").sameAsResource("java/googlejavaformat/JavaCodeFormatted.test");
 
+		// the withDebug forces it to start a new deamon, but only in Gradle 8.3 and older
+		// starting with Gradle 8.5 this doesn't work anymore
+		// and we need Gradle 8.5 for Java 21
+		// so we can't test this on Java 21 for now
 		BuildResult failure = gradleRunner().withDebug(true).withArguments("spotlessApply", "--stacktrace").buildAndFail();
 		failure.getOutput().contains("Spotless daemon-local cache is stale. Regenerate the cache with\n" +
 				"  rm -rf .gradle/configuration-cache\n" +

plugin-gradle/src/test/java/com/diffplug/gradle/spotless/GoogleJavaFormatIntegrationTest.java

@@ -31,7 +31,7 @@ void integration() throws IOException {
 				"spotless {",
 				"    java {",
 				"        target file('test.java')",
-				"        googleJavaFormat('1.10.0')",
+				"        googleJavaFormat('1.17.0')",
 				"    }",
 				"}");
 
@@ -41,7 +41,7 @@ void integration() throws IOException {
 
 		checkRunsThenUpToDate();
 		replace("build.gradle",
-				"googleJavaFormat('1.10.0')",
+				"googleJavaFormat('1.17.0')",
 				"googleJavaFormat()");
 		checkRunsThenUpToDate();
 	}
@@ -57,7 +57,7 @@ void integrationWithReorderImports() throws IOException {
 				"spotless {",
 				"    java {",
 				"        target file('test.java')",
-				"        googleJavaFormat('1.12.0').aosp().reorderImports(true)",
+				"        googleJavaFormat('1.17.0').aosp().reorderImports(true)",
 				"    }",
 				"}");
 
@@ -67,7 +67,7 @@ void integrationWithReorderImports() throws IOException {
 
 		checkRunsThenUpToDate();
 		replace("build.gradle",
-				"googleJavaFormat('1.12.0')",
+				"googleJavaFormat('1.17.0')",
 				"googleJavaFormat()");
 		checkRunsThenUpToDate();
 	}
@@ -83,7 +83,7 @@ void integrationWithSkipJavadocFormatting() throws IOException {
 				"spotless {",
 				"    java {",
 				"        target file('test.java')",
-				"        googleJavaFormat('1.12.0').skipJavadocFormatting()",
+				"        googleJavaFormat('1.17.0').skipJavadocFormatting()",
 				"    }",
 				"}");
 
@@ -93,7 +93,7 @@ void integrationWithSkipJavadocFormatting() throws IOException {
 
 		checkRunsThenUpToDate();
 		replace("build.gradle",
-				"googleJavaFormat('1.12.0')",
+				"googleJavaFormat('1.17.0')",
 				"googleJavaFormat()");
 		checkRunsThenUpToDate();
 	}

plugin-gradle/src/test/java/com/diffplug/gradle/spotless/GradleIntegrationHarness.java

@@ -54,9 +54,14 @@ public enum GradleVersionSupport {
 		GradleVersionSupport(String version) {
 			String minVersionForRunningJRE;
 			switch (Jvm.version()) {
+			case 22:
+				// TODO: https://docs.gradle.org/current/userguide/compatibility.html
 			case 21:
+				minVersionForRunningJRE = "8.5";
+				break;
 			case 20:
-				// TODO: https://docs.gradle.org/current/userguide/compatibility.html
+				minVersionForRunningJRE = "8.3";
+				break;
 			case 19:
 				minVersionForRunningJRE = "7.6";
 				break;

plugin-gradle/src/test/java/com/diffplug/gradle/spotless/MultiProjectTest.java

@@ -47,7 +47,7 @@ void createSubproject(String name) throws IOException {
 				"spotless {",
 				"    java {",
 				"        target file('test.java')",
-				"        googleJavaFormat('1.16.0')",
+				"        googleJavaFormat('1.17.0')",
 				"    }",
 				"}");
 		setFile(name + "/test.java").toResource("java/googlejavaformat/JavaCodeUnformatted.test");
@@ -71,7 +71,7 @@ public void hasRootSpotless() throws IOException {
 				"spotless {",
 				"    java {",
 				"        target file('test.java')",
-				"        googleJavaFormat('1.16.0')",
+				"        googleJavaFormat('1.17.0')",
 				"    }",
 				"}");
 		setFile("test.java").toResource("java/googlejavaformat/JavaCodeUnformatted.test");
@@ -88,7 +88,7 @@ public void predeclaredFails() throws IOException {
 				"spotless { predeclareDeps() }");
 		createNSubprojects();
 		Assertions.assertThat(gradleRunner().withArguments("spotlessApply").buildAndFail().getOutput())
-				.contains("Add a step with [com.google.googlejavaformat:google-java-format:1.16.0] into the `spotlessPredeclare` block in the root project.");
+				.contains("Add a step with [com.google.googlejavaformat:google-java-format:1.17.0] into the `spotlessPredeclare` block in the root project.");
 	}
 
 	@Test
@@ -100,7 +100,7 @@ public void predeclaredSucceeds() throws IOException {
 				"repositories { mavenCentral() }",
 				"spotless { predeclareDeps() }",
 				"spotlessPredeclare {",
-				" java { googleJavaFormat('1.16.0') }",
+				" java { googleJavaFormat('1.17.0') }",
 				"}");
 		createNSubprojects();
 		gradleRunner().withArguments("spotlessApply").build();
@@ -115,7 +115,7 @@ public void predeclaredFromBuildscriptSucceeds() throws IOException {
 				"repositories { mavenCentral() }",
 				"spotless { predeclareDepsFromBuildscript() }",
 				"spotlessPredeclare {",
-				" java { googleJavaFormat('1.16.0') }",
+				" java { googleJavaFormat('1.17.0') }",
 				"}");
 		createNSubprojects();
 		gradleRunner().withArguments("spotlessApply").build();
@@ -129,7 +129,7 @@ public void predeclaredOrdering() throws IOException {
 				"}",
 				"repositories { mavenCentral() }",
 				"spotlessPredeclare {",
-				" java { googleJavaFormat('1.16.0') }",
+				" java { googleJavaFormat('1.17.0') }",
 				"}",
 				"spotless { predeclareDepsFromBuildscript() }");
 		createNSubprojects();
@@ -145,7 +145,7 @@ public void predeclaredUndeclared() throws IOException {
 				"}",
 				"repositories { mavenCentral() }",
 				"spotlessPredeclare {",
-				" java { googleJavaFormat('1.16.0') }",
+				" java { googleJavaFormat('1.17.0') }",
 				"}");
 		createNSubprojects();
 		Assertions.assertThat(gradleRunner().withArguments("spotlessApply").buildAndFail().getOutput())

plugin-maven/CHANGES.md

@@ -3,12 +3,16 @@
 We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (starting after version `1.27.0`).
 
 ## [Unreleased]
+### Changes
+* Use palantir-java-format 2.38.0 on Java 21. ([#1920](https://github.com/diffplug/spotless/pull/1920))
+* Bump default `googleJavaFormat` version to latest `1.17.0` -> `1.18.1`. ([#1920](https://github.com/diffplug/spotless/pull/1920))
 ### Fixed
 * Revert [#1846](https://github.com/diffplug/spotless/issues/1846) from 2.41.0 which causes the plugin to format generated sources in the `target` directory. ([#1928](https://github.com/diffplug/spotless/pull/1928))
 
 ## [2.41.0] - 2023-11-27
 ### Added
-* CompileSourceRoots and TestCompileSourceRoots are now respected as default includes. These properties are commonly set when adding extra source directories. ([#1846](https://github.com/diffplug/spotless/issues/1846))
+* ~~CompileSourceRoots and TestCompileSourceRoots are now respected as default includes. These properties are commonly set when adding extra source directories.~~ ([#1846](https://github.com/diffplug/spotless/issues/1846))
+  * Reverted in the next release (`2.41.1`) due to backward compatibility problems, see [#1914](https://github.com/diffplug/spotless/issues/1914).
 * Support custom rule sets for Ktlint. ([#1896](https://github.com/diffplug/spotless/pull/1896))
 ### Fixed
 * Fix crash when build dir is a softlink to another directory. ([#1859](https://github.com/diffplug/spotless/pull/1859))

plugin-maven/src/test/java/com/diffplug/spotless/maven/MavenProvisionerTest.java

@@ -33,7 +33,6 @@ void testMultipleDependenciesExcludingTransitives() throws Exception {
 	void testSingleDependencyIncludingTransitives() throws Exception {
 		writePomWithJavaSteps(
 				"<googleJavaFormat>",
-				"  <version>1.10.0</version>",
 				"</googleJavaFormat>");
 		assertResolveDependenciesWorks();
 	}

plugin-maven/src/test/java/com/diffplug/spotless/maven/SpecificFilesTest.java

@@ -58,7 +58,6 @@ private void integration(String patterns, boolean firstFormatted, boolean second
 				"  <include>src/**/java/**/*.java</include>",
 				"</includes>",
 				"<googleJavaFormat>",
-				"  <version>1.10.0</version>",
 				"</googleJavaFormat>");
 
 		setFile(testFile(1)).toResource(fixture(false));

plugin-maven/src/test/java/com/diffplug/spotless/maven/java/GoogleJavaFormatTest.java

@@ -24,7 +24,7 @@ class GoogleJavaFormatTest extends MavenIntegrationHarness {
 	void specificVersionDefaultStyle() throws Exception {
 		writePomWithJavaSteps(
 				"<googleJavaFormat>",
-				"  <version>1.10.0</version>",
+				"  <version>1.17.0</version>",
 				"</googleJavaFormat>");
 
 		runTest("java/googlejavaformat/JavaCodeFormatted.test");
@@ -34,7 +34,7 @@ void specificVersionDefaultStyle() throws Exception {
 	void specificVersionSpecificStyle() throws Exception {
 		writePomWithJavaSteps(
 				"<googleJavaFormat>",
-				"  <version>1.10.0</version>",
+				"  <version>1.17.0</version>",
 				"  <style>AOSP</style>",
 				"</googleJavaFormat>");
 
@@ -45,7 +45,7 @@ void specificVersionSpecificStyle() throws Exception {
 	void specificVersionReflowLongStrings() throws Exception {
 		writePomWithJavaSteps(
 				"<googleJavaFormat>",
-				"  <version>1.10.0</version>",
+				"  <version>1.17.0</version>",
 				"  <reflowLongStrings>true</reflowLongStrings>",
 				"</googleJavaFormat>");
 
@@ -56,7 +56,7 @@ void specificVersionReflowLongStrings() throws Exception {
 	void specificVersionReorderImports() throws Exception {
 		writePomWithJavaSteps(
 				"<googleJavaFormat>",
-				"  <version>1.12.0</version>",
+				"  <version>1.17.0</version>",
 				"  <style>AOSP</style>",
 				"  <reorderImports>true</reorderImports>",
 				"</googleJavaFormat>");
@@ -68,7 +68,7 @@ void specificVersionReorderImports() throws Exception {
 	void specificVersionSkipJavadocFormatting() throws Exception {
 		writePomWithJavaSteps(
 				"<googleJavaFormat>",
-				"  <version>1.12.0</version>",
+				"  <version>1.17.0</version>",
 				"  <formatJavadoc>false</formatJavadoc>",
 				"</googleJavaFormat>");
 

plugin-maven/src/test/java/com/diffplug/spotless/maven/java/PalantirJavaFormatTest.java

@@ -34,7 +34,7 @@ void specificVersionDefaultStyle() throws Exception {
 	void specificJava11Version2() throws Exception {
 		writePomWithJavaSteps(
 				"<palantirJavaFormat>",
-				"  <version>2.10.0</version>",
+				"  <version>2.38.0</version>",
 				"</palantirJavaFormat>");
 
 		runTest("java/palantirjavaformat/JavaCodeFormatted.test");