gradle k8sBuild on a quarkus project is failing with java.util.ConcurrentModificationException

[sunix]

Description

Info

• Eclipse JKube version : 1.5.1 or 1.6.0-SNAPSHOT

• Gradle version: gradlew (provided) 7.3

• If it's a bug, how to reproduce :

1. create a new gradle Quarkus project from https://code.quarkus.io/
2. add to build.gradle

    id 'org.eclipse.jkube.kubernetes' version '1.5.1'
   

3. run

   ./gradlew k8sBuild --info --stacktrace
   

4. it fails with

    > Task :k8sBuild FAILED
    Caching disabled for task ':k8sBuild' because:
      Build cache is disabled
    Task ':k8sBuild' is not up-to-date because:
      Task has not declared any outputs despite executing actions.
    :k8sBuild (Thread[Execution worker for ':',5,main]) completed. Took 0.477 secs.
   
    FAILURE: Build failed with an exception.
   
    * What went wrong:
    Execution failed for task ':k8sBuild'.
    > java.util.ConcurrentModificationException (no error message)
   

* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':k8sBuild'.
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.lambda$executeIfValid$1(ExecuteActionsTaskExecuter.java:145)
        at org.gradle.internal.Try$Failure.ifSuccessfulOrElse(Try.java:282)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeIfValid(ExecuteActionsTaskExecuter.java:143)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:131)
        at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:77)
        at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
        at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:51)
        at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
        at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
        at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:77)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:55)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:199)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:73)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:52)
        at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:74)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:402)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:389)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:382)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:368)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.lambda$run$0(DefaultPlanExecutor.java:127)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:191)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:182)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:124)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
        at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48)
        at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:61)
Caused by: java.util.ConcurrentModificationException
        at org.gradle.api.internal.DefaultDomainObjectCollection$IteratorImpl.next(DefaultDomainObjectCollection.java:475)
        at org.eclipse.jkube.gradle.plugin.GradleUtil.extractDependencies(GradleUtil.java:138)
        at org.eclipse.jkube.gradle.plugin.GradleUtil.extractDependencies(GradleUtil.java:105)
        at org.eclipse.jkube.gradle.plugin.GradleUtil.convertGradleProject(GradleUtil.java:74)
        at org.eclipse.jkube.gradle.plugin.task.AbstractJKubeTask.runTask(AbstractJKubeTask.java:66)

[rohanKanojia]

What happens when you set a breakpoint here? Could it be due to the way we're extracting dependencies?

https://github.com/eclipse/jkube/blob/ab423e19c5945524ca6ff3f2dc4896546961eb8c/gradle-plugin/kubernetes/src/main/java/org/eclipse/jkube/gradle/plugin/GradleUtil.java#L138

[manusa]

That's odd, but that code is doing lot's of stuff and manipulating several lists. It might be colliding with something Quarkus is doing.

[sunix]

What happens when you set a breakpoint here? Could it be due to the way we're extracting dependencies?

https://github.com/eclipse/jkube/blob/ab423e19c5945524ca6ff3f2dc4896546961eb8c/gradle-plugin/kubernetes/src/main/java/org/eclipse/jkube/gradle/plugin/GradleUtil.java#L138

That part is tricky to debug with the stream api.

[manusa]

Don't worry, I'll try to take a look tomorrow first thing.
That piece of code is doing too many things.

[sunix]

maybe this will help: it is OK if I ignore quarkusDev