Gradle tests fail when running the build with Java 22

[fbricon]

mvn clean verify -Dtest="*Gradle*" -DfailIfNoTests=false

yields:

Failures:
  GradleProjectMetadataFileTest.testDeleteClasspath:148->AbstractGradleBasedTest.importSimpleJavaProject:33 expected:<1[.]7> but was:<1[]7>
  GradleProjectMetadataFileTest.testDeleteClasspath:148->AbstractGradleBasedTest.importSimpleJavaProject:33 expected:<1[.]7> but was:<1[]7>
  GradleProjectMetadataFileTest.testMetadataFileLocation2:118
  GradleProjectMetadataFileTest.testMetadataFileLocation2:118
  GradleProjectMetadataFileTest.testSettingsGradle:124 expected:<2> but was:<1>
  GradleProjectMetadataFileTest.testSettingsGradle:124 expected:<2> but was:<1>
  GradleBuildSupportTest.testUpdate:34->AbstractGradleBasedTest.importSimpleJavaProject:33 expected:<1[.]7> but was:<1[]7>
  GradleProjectImporterTest.importGradleKtsProject:542->AbstractProjectsManagerBasedTest.assertNoErrors:363 kradle has errors:
Type=org.eclipse.buildship.core.errormarker:Message=Could not fetch model of type 'BuildEnvironment' using connection to Gradle distribution 'https://services.gradle.org/distributions/gradle-7.3.3-bin.zip'.
The supplied javaHome seems to be invalid. I cannot find the java executable. Tried location: /Users/fbricon/Dev/projects/eclipse.jdt.ls/org.eclipse.jdt.ls.tests/fakejdk/17/bin/java:LineNumber=0 expected:<0> but was:<1>
  GradleProjectImporterTest.importSimpleGradleProject:92->AbstractGradleBasedTest.importSimpleJavaProject:33 expected:<1[.]7> but was:<1[]7>
  GradleProjectImporterTest.testAndroidProjectSupport:644 expected:<2> but was:<1>
  GradleProjectImporterTest.testAndroidProjectSupportChanged:687 expected:<2> but was:<1>
  GradleProjectImporterTest.testAnnotationProcessing:739
  GradleProjectImporterTest.testBuildFile:354->AbstractGradleBasedTest.importSimpleJavaProject:33 expected:<1[.]7> but was:<1[]7>
  GradleProjectImporterTest.testGradlePersistence:289 gradle1 should not synchronize
  GradleProjectImporterTest.testGradlePropertiesFile:365->AbstractGradleBasedTest.importSimpleJavaProject:33 expected:<1[.]7> but was:<1[]7>
  GradleProjectImporterTest.testJava11Project:463->AbstractProjectsManagerBasedTest.assertIsJavaProject:319 gradle-11 is missing the Java nature
  GradleProjectImporterTest.testJava12Project:470->testJavaProjectWithPreviewFeatures:758->AbstractProjectsManagerBasedTest.assertIsJavaProject:319 gradle-12 is missing the Java nature
  GradleProjectImporterTest.testJava13Project:475->testJavaProjectWithPreviewFeatures:758->AbstractProjectsManagerBasedTest.assertIsJavaProject:319 gradle-13 is missing the Java nature
  GradleProjectImporterTest.testJava14Project:480->testJavaProjectWithPreviewFeatures:758->AbstractProjectsManagerBasedTest.assertIsJavaProject:319 gradle-14 is missing the Java nature
  GradleProjectImporterTest.testNameConflictProject:632 expected:<2> but was:<1>
  GradleProjectImporterTest.testSubprojects:490 expected:<3> but was:<1>
Errors:
  GradleProjectMetadataFileTest.testMetadataFileLocation:90 NullPointer Cannot invoke "org.eclipse.core.resources.IProject.getFile(String)" because "project" is null
  GradleProjectMetadataFileTest.testMetadataFileLocation:90 NullPointer Cannot invoke "org.eclipse.core.resources.IProject.getFile(String)" because "project" is null
  GradleProjectImporterTest.testProtoBufSupport:591 » JavaModel protobuf does not exist
  GradleProjectImporterTest.testProtoBufSupportChanged:609 » JavaModel protobuf does not exist

Tests run: 46, Failures: 21, Errors: 4, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary for JDT Language Server :: Parent 1.36.0-SNAPSHOT:
[INFO]
[INFO] JDT Language Server :: Parent ...................... SUCCESS [  0.023 s]
[INFO] JDT Language Server :: Target Platform ............. SUCCESS [  0.003 s]
[INFO] JDT Language Server :: Core ........................ SUCCESS [ 15.024 s]
[INFO] JDT Language Server :: Filesystem .................. SUCCESS [  0.134 s]
[INFO] JDT Language Server :: Tests ....................... FAILURE [ 24.865 s]
[INFO] JDT Language Server :: Java LS Logback.appender .... SKIPPED
[INFO] JDT Language Server :: SyntaxServer Tests .......... SKIPPED
[INFO] JDT Language Server :: Product ..................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  42.402 s
[INFO] Finished at: 2024-05-29T18:29:46+02:00
[INFO] ------------------------------------------------------------------------

[fbricon]

It's a known upstream issue: eclipse-buildship/buildship#1302 (comment)
Gradle itself can't run on Java 22 currently: https://docs.gradle.org/current/userguide/compatibility.html#java

[fbricon]

Yeah now I have just 3 tests consistently failing, without changing anything O_o

Failures:
  GradleProjectImporterTest.testNameConflictProject:632 expected:<2> but was:<1>
Errors:
  GradleProjectImporterTest.testProtoBufSupport:591 » JavaModel protobuf does not exist
  GradleProjectImporterTest.testProtoBufSupportChanged:609 » JavaModel protobuf does not exist

Tests run: 46, Failures: 1, Errors: 2, Skipped: 0