See 
<https://builds.apache.org/job/kafka-trunk-jdk8/1298/display/redirect?page=changes>

Changes:

[ismael] KAFKA-4198; Fix race condition in KafkaServer.shutdown()

------------------------------------------
[...truncated 305.90 KB...]
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.doStartOperation(DefaultBuildOperationWorkerRegistry.java:65)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.access$400(DefaultBuildOperationWorkerRegistry.java:30)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry$DefaultOperation.operationStart(DefaultBuildOperationWorkerRegistry.java:163)
        at 
org.gradle.api.internal.tasks.testing.worker.ForkingTestClassProcessor.processTestClass(ForkingTestClassProcessor.java:68)
        at 
org.gradle.api.internal.tasks.testing.processors.RestartEveryNTestClassProcessor.processTestClass(RestartEveryNTestClassProcessor.java:47)
        at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.dispatch.FailureHandlingDispatch.dispatch(FailureHandlingDispatch.java:29)
        at 
org.gradle.internal.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132)
        at 
org.gradle.internal.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33)
        at 
org.gradle.internal.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72)
        at 
org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at 
org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Cannot nest operations in the same thread. Each nested operation must run in 
its own thread.
java.lang.UnsupportedOperationException: Cannot nest operations in the same 
thread. Each nested operation must run in its own thread.
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.doStartOperation(DefaultBuildOperationWorkerRegistry.java:65)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.access$400(DefaultBuildOperationWorkerRegistry.java:30)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry$DefaultOperation.operationStart(DefaultBuildOperationWorkerRegistry.java:163)
        at 
org.gradle.api.internal.tasks.testing.worker.ForkingTestClassProcessor.processTestClass(ForkingTestClassProcessor.java:68)
        at 
org.gradle.api.internal.tasks.testing.processors.RestartEveryNTestClassProcessor.processTestClass(RestartEveryNTestClassProcessor.java:47)
        at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.dispatch.FailureHandlingDispatch.dispatch(FailureHandlingDispatch.java:29)
        at 
org.gradle.internal.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132)
        at 
org.gradle.internal.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33)
        at 
org.gradle.internal.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72)
        at 
org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at 
org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Cannot nest operations in the same thread. Each nested operation must run in 
its own thread.
java.lang.UnsupportedOperationException: Cannot nest operations in the same 
thread. Each nested operation must run in its own thread.
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.doStartOperation(DefaultBuildOperationWorkerRegistry.java:65)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.access$400(DefaultBuildOperationWorkerRegistry.java:30)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry$DefaultOperation.operationStart(DefaultBuildOperationWorkerRegistry.java:163)
        at 
org.gradle.api.internal.tasks.testing.worker.ForkingTestClassProcessor.processTestClass(ForkingTestClassProcessor.java:68)
        at 
org.gradle.api.internal.tasks.testing.processors.RestartEveryNTestClassProcessor.processTestClass(RestartEveryNTestClassProcessor.java:47)
        at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.dispatch.FailureHandlingDispatch.dispatch(FailureHandlingDispatch.java:29)
        at 
org.gradle.internal.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132)
        at 
org.gradle.internal.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33)
        at 
org.gradle.internal.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72)
        at 
org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at 
org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Cannot nest operations in the same thread. Each nested operation must run in 
its own thread.
java.lang.UnsupportedOperationException: Cannot nest operations in the same 
thread. Each nested operation must run in its own thread.
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.doStartOperation(DefaultBuildOperationWorkerRegistry.java:65)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.access$400(DefaultBuildOperationWorkerRegistry.java:30)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry$DefaultOperation.operationStart(DefaultBuildOperationWorkerRegistry.java:163)
        at 
org.gradle.api.internal.tasks.testing.worker.ForkingTestClassProcessor.processTestClass(ForkingTestClassProcessor.java:68)
        at 
org.gradle.api.internal.tasks.testing.processors.RestartEveryNTestClassProcessor.processTestClass(RestartEveryNTestClassProcessor.java:47)
        at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.dispatch.FailureHandlingDispatch.dispatch(FailureHandlingDispatch.java:29)
        at 
org.gradle.internal.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132)
        at 
org.gradle.internal.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33)
        at 
org.gradle.internal.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72)
        at 
org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at 
org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Cannot nest operations in the same thread. Each nested operation must run in 
its own thread.
java.lang.UnsupportedOperationException: Cannot nest operations in the same 
thread. Each nested operation must run in its own thread.
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.doStartOperation(DefaultBuildOperationWorkerRegistry.java:65)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.access$400(DefaultBuildOperationWorkerRegistry.java:30)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry$DefaultOperation.operationStart(DefaultBuildOperationWorkerRegistry.java:163)
        at 
org.gradle.api.internal.tasks.testing.worker.ForkingTestClassProcessor.processTestClass(ForkingTestClassProcessor.java:68)
        at 
org.gradle.api.internal.tasks.testing.processors.RestartEveryNTestClassProcessor.processTestClass(RestartEveryNTestClassProcessor.java:47)
        at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.dispatch.FailureHandlingDispatch.dispatch(FailureHandlingDispatch.java:29)
        at 
org.gradle.internal.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132)
        at 
org.gradle.internal.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33)
        at 
org.gradle.internal.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72)
        at 
org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at 
org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Cannot nest operations in the same thread. Each nested operation must run in 
its own thread.
java.lang.UnsupportedOperationException: Cannot nest operations in the same 
thread. Each nested operation must run in its own thread.
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.doStartOperation(DefaultBuildOperationWorkerRegistry.java:65)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.access$400(DefaultBuildOperationWorkerRegistry.java:30)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry$DefaultOperation.operationStart(DefaultBuildOperationWorkerRegistry.java:163)
        at 
org.gradle.api.internal.tasks.testing.worker.ForkingTestClassProcessor.processTestClass(ForkingTestClassProcessor.java:68)
        at 
org.gradle.api.internal.tasks.testing.processors.RestartEveryNTestClassProcessor.processTestClass(RestartEveryNTestClassProcessor.java:47)
        at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.dispatch.FailureHandlingDispatch.dispatch(FailureHandlingDispatch.java:29)
        at 
org.gradle.internal.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132)
        at 
org.gradle.internal.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33)
        at 
org.gradle.internal.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72)
        at 
org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at 
org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Cannot nest operations in the same thread. Each nested operation must run in 
its own thread.
java.lang.UnsupportedOperationException: Cannot nest operations in the same 
thread. Each nested operation must run in its own thread.
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.doStartOperation(DefaultBuildOperationWorkerRegistry.java:65)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.access$400(DefaultBuildOperationWorkerRegistry.java:30)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry$DefaultOperation.operationStart(DefaultBuildOperationWorkerRegistry.java:163)
        at 
org.gradle.api.internal.tasks.testing.worker.ForkingTestClassProcessor.processTestClass(ForkingTestClassProcessor.java:68)
        at 
org.gradle.api.internal.tasks.testing.processors.RestartEveryNTestClassProcessor.processTestClass(RestartEveryNTestClassProcessor.java:47)
        at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.dispatch.FailureHandlingDispatch.dispatch(FailureHandlingDispatch.java:29)
        at 
org.gradle.internal.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132)
        at 
org.gradle.internal.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33)
        at 
org.gradle.internal.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72)
        at 
org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at 
org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Cannot nest operations in the same thread. Each nested operation must run in 
its own thread.
java.lang.UnsupportedOperationException: Cannot nest operations in the same 
thread. Each nested operation must run in its own thread.
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.doStartOperation(DefaultBuildOperationWorkerRegistry.java:65)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.access$400(DefaultBuildOperationWorkerRegistry.java:30)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry$DefaultOperation.operationStart(DefaultBuildOperationWorkerRegistry.java:163)
        at 
org.gradle.api.internal.tasks.testing.worker.ForkingTestClassProcessor.processTestClass(ForkingTestClassProcessor.java:68)
        at 
org.gradle.api.internal.tasks.testing.processors.RestartEveryNTestClassProcessor.processTestClass(RestartEveryNTestClassProcessor.java:47)
        at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.dispatch.FailureHandlingDispatch.dispatch(FailureHandlingDispatch.java:29)
        at 
org.gradle.internal.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132)
        at 
org.gradle.internal.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33)
        at 
org.gradle.internal.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72)
        at 
org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at 
org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Cannot nest operations in the same thread. Each nested operation must run in 
its own thread.
java.lang.UnsupportedOperationException: Cannot nest operations in the same 
thread. Each nested operation must run in its own thread.
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.doStartOperation(DefaultBuildOperationWorkerRegistry.java:65)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.access$400(DefaultBuildOperationWorkerRegistry.java:30)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry$DefaultOperation.operationStart(DefaultBuildOperationWorkerRegistry.java:163)
        at 
org.gradle.api.internal.tasks.testing.worker.ForkingTestClassProcessor.processTestClass(ForkingTestClassProcessor.java:68)
        at 
org.gradle.api.internal.tasks.testing.processors.RestartEveryNTestClassProcessor.processTestClass(RestartEveryNTestClassProcessor.java:47)
        at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.dispatch.FailureHandlingDispatch.dispatch(FailureHandlingDispatch.java:29)
        at 
org.gradle.internal.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132)
        at 
org.gradle.internal.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33)
        at 
org.gradle.internal.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72)
        at 
org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at 
org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Cannot nest operations in the same thread. Each nested operation must run in 
its own thread.
java.lang.UnsupportedOperationException: Cannot nest operations in the same 
thread. Each nested operation must run in its own thread.
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.doStartOperation(DefaultBuildOperationWorkerRegistry.java:65)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.access$400(DefaultBuildOperationWorkerRegistry.java:30)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry$DefaultOperation.operationStart(DefaultBuildOperationWorkerRegistry.java:163)
        at 
org.gradle.api.internal.tasks.testing.worker.ForkingTestClassProcessor.processTestClass(ForkingTestClassProcessor.java:68)
        at 
org.gradle.api.internal.tasks.testing.processors.RestartEveryNTestClassProcessor.processTestClass(RestartEveryNTestClassProcessor.java:47)
        at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.dispatch.FailureHandlingDispatch.dispatch(FailureHandlingDispatch.java:29)
        at 
org.gradle.internal.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132)
        at 
org.gradle.internal.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33)
        at 
org.gradle.internal.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72)
        at 
org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at 
org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Cannot nest operations in the same thread. Each nested operation must run in 
its own thread.
java.lang.UnsupportedOperationException: Cannot nest operations in the same 
thread. Each nested operation must run in its own thread.
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.doStartOperation(DefaultBuildOperationWorkerRegistry.java:65)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry.access$400(DefaultBuildOperationWorkerRegistry.java:30)
        at 
org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry$DefaultOperation.operationStart(DefaultBuildOperationWorkerRegistry.java:163)
        at 
org.gradle.api.internal.tasks.testing.worker.ForkingTestClassProcessor.processTestClass(ForkingTestClassProcessor.java:68)
        at 
org.gradle.api.internal.tasks.testing.processors.RestartEveryNTestClassProcessor.processTestClass(RestartEveryNTestClassProcessor.java:47)
        at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at 
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at 
org.gradle.internal.dispatch.FailureHandlingDispatch.dispatch(FailureHandlingDispatch.java:29)
        at 
org.gradle.internal.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132)
        at 
org.gradle.internal.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33)
        at 
org.gradle.internal.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72)
        at 
org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at 
org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
:kafka-trunk-jdk8:core:test FAILED
:test_core_2_10 FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':test_core_2_10'.
> Some build operations have not been marked as completed.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug 
option to get more log output.

BUILD FAILED

Total time: 9 mins 32.419 secs
Build step 'Execute shell' marked build as failure
Recording test results
Setting 
GRADLE_2_4_RC_2_HOME=/home/jenkins/jenkins-slave/tools/hudson.plugins.gradle.GradleInstallation/Gradle_2.4-rc-2
ERROR: Step ‘Publish JUnit test result report’ failed: No test report files 
were found. Configuration error?
Setting 
GRADLE_2_4_RC_2_HOME=/home/jenkins/jenkins-slave/tools/hudson.plugins.gradle.GradleInstallation/Gradle_2.4-rc-2

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