Set JAVA_HOME for all Maven builds triggered from integration tests

Author: marcphilipp

platform-tooling-support-tests/src/main/java/platform/tooling/support/ProcessStarters.java

@@ -53,9 +53,14 @@ public static ProcessStarter gradlew() {
 	}
 
 	public static ProcessStarter maven() {
+		return maven(currentJdkHome());
+	}
+
+	public static ProcessStarter maven(Path javaHome) {
 		return new ProcessStarter() //
 				.executable(Path.of(System.getProperty("mavenDistribution")).resolve("bin").resolve(
 					windowsOrOtherExecutable("mvn.cmd", "mvn")).toAbsolutePath()) //
+				.putEnvironment("JAVA_HOME", javaHome) //
 				.addArguments("-Djunit.jupiter.version=" + Helper.version("junit-jupiter")) //
 				.addArguments("-Djunit.bom.version=" + Helper.version("junit-jupiter")) //
 				.addArguments("-Djunit.vintage.version=" + Helper.version("junit-vintage")) //

platform-tooling-support-tests/src/test/java/platform/tooling/support/tests/JavaVersionsTests.java

@@ -55,9 +55,8 @@ void java_default() throws Exception {
 	}
 
 	List<String> execute(Path javaHome, Map<String, String> environmentVars) throws Exception {
-		var result = ProcessStarters.maven() //
+		var result = ProcessStarters.maven(javaHome) //
 				.workingDir(copyToWorkspace(Projects.JAVA_VERSIONS, workspace)) //
-				.putEnvironment("JAVA_HOME", javaHome) //
 				.putEnvironment(environmentVars) //
 				.addArguments(localMavenRepo.toCliArgument(), "-Dmaven.repo=" + MavenRepo.dir()) //
 				.addArguments("--update-snapshots", "--batch-mode", "verify") //

platform-tooling-support-tests/src/test/java/platform/tooling/support/tests/MavenStarterTests.java

@@ -39,12 +39,11 @@ class MavenStarterTests {
 
 	@Test
 	void verifyMavenStarterProject(@TempDir Path workspace) throws Exception {
-		var result = ProcessStarters.maven() //
+		var result = ProcessStarters.maven(Helper.getJavaHome("8").orElseThrow(TestAbortedException::new)) //
 				.workingDir(copyToWorkspace(Projects.MAVEN_STARTER, workspace)) //
 				.addArguments(localMavenRepo.toCliArgument(), "-Dmaven.repo=" + MavenRepo.dir()) //
 				.addArguments("-Dsnapshot.repo.url=" + mavenRepoProxy.getBaseUri()) //
 				.addArguments("--update-snapshots", "--batch-mode", "verify") //
-				.putEnvironment("JAVA_HOME", Helper.getJavaHome("8").orElseThrow(TestAbortedException::new)) //
 				.startAndWait();
 
 		assertEquals(0, result.exitCode());

platform-tooling-support-tests/src/test/java/platform/tooling/support/tests/MavenSurefireCompatibilityTests.java

@@ -43,13 +43,12 @@ class MavenSurefireCompatibilityTests {
 	void testMavenSurefireCompatibilityProject(String surefireVersion, String extraArg, @TempDir Path workspace)
 			throws Exception {
 		var extraArgs = extraArg == null ? new String[0] : new String[] { extraArg };
-		var result = ProcessStarters.maven() //
+		var result = ProcessStarters.maven(Helper.getJavaHome("8").orElseThrow(TestAbortedException::new)) //
 				.workingDir(copyToWorkspace(Projects.MAVEN_SUREFIRE_COMPATIBILITY, workspace)) //
 				.addArguments(localMavenRepo.toCliArgument(), "-Dmaven.repo=" + MavenRepo.dir()) //
 				.addArguments("-Dsurefire.version=" + surefireVersion) //
 				.addArguments("--update-snapshots", "--batch-mode", "test") //
 				.addArguments(extraArgs) //
-				.putEnvironment("JAVA_HOME", Helper.getJavaHome("8").orElseThrow(TestAbortedException::new)) //
 				.startAndWait();
 
 		assertEquals(0, result.exitCode());

platform-tooling-support-tests/src/test/java/platform/tooling/support/tests/VintageMavenIntegrationTests.java

@@ -61,9 +61,8 @@ void supportedVersions(String version) throws Exception {
 	}
 
 	private ProcessResult run(String version) throws Exception {
-		return ProcessStarters.maven() //
+		return ProcessStarters.maven(Helper.getJavaHome("8").orElseThrow(TestAbortedException::new)) //
 				.workingDir(copyToWorkspace(Projects.VINTAGE, workspace)) //
-				.putEnvironment("JAVA_HOME", Helper.getJavaHome("8").orElseThrow(TestAbortedException::new)) //
 				.addArguments("clean", "test", "--update-snapshots", "--batch-mode") //
 				.addArguments(localMavenRepo.toCliArgument(), "-Dmaven.repo=" + MavenRepo.dir()) //
 				.addArguments("-Djunit4Version=" + version) //