[jira] [Resolved] (KAFKA-5141) WorkerTest.testCleanupTasksOnStop transient failure due to NPE

2019-04-03 Thread Randall Hauch (JIRA) 


 [ 
https://issues.apache.org/jira/browse/KAFKA-5141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Randall Hauch resolved KAFKA-5141.
--
Resolution: Fixed

> WorkerTest.testCleanupTasksOnStop transient failure due to NPE
> --
>
> Key: KAFKA-5141
> URL: https://issues.apache.org/jira/browse/KAFKA-5141
> Project: Kafka
>  Issue Type: Bug
>  Components: KafkaConnect, unit tests
>Affects Versions: 2.3.0
>Reporter: Ewen Cheslack-Postava
>Priority: Critical
>  Labels: flaky-test, transient-unit-test-failure
> Fix For: 2.0.2, 2.3.0, 2.1.2, 2.2.1
>
>
> https://builds.apache.org/job/kafka-pr-jdk8-scala2.11/3281/testReport/junit/org.apache.kafka.connect.runtime/WorkerTest/testCleanupTasksOnStop/
> Looks like the potential culprit is a NullPointerException when trying to 
> start a connector. It's likely being caught and logged via a catch 
> (Throwable). From the lines being executed it looks like the null might be 
> due to the instantiation of the Connector returning null, although I don't 
> see how that is possible given the current code. We may need more logging 
> output to track the issue down.
> {quote}
> Error Message
> java.lang.AssertionError: 
>   Expectation failure on verify:
> WorkerSourceTask.run(): expected: 1, actual: 0
> Stacktrace
> java.lang.AssertionError: 
>   Expectation failure on verify:
> WorkerSourceTask.run(): expected: 1, actual: 0
>   at org.easymock.internal.MocksControl.verify(MocksControl.java:225)
>   at 
> org.powermock.api.easymock.internal.invocationcontrol.EasyMockMethodInvocationControl.verify(EasyMockMethodInvocationControl.java:132)
>   at org.powermock.api.easymock.PowerMock.verify(PowerMock.java:1466)
>   at org.powermock.api.easymock.PowerMock.verifyAll(PowerMock.java:1405)
>   at 
> org.apache.kafka.connect.runtime.WorkerTest.testCleanupTasksOnStop(WorkerTest.java:480)
>   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>   at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>   at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>   at java.lang.reflect.Method.invoke(Method.java:498)
>   at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:68)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:310)
>   at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:89)
>   at 
> org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:97)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:294)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:127)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:282)
>   at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:87)
>   at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:50)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:207)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:146)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:120)
>   at 
> org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
>   at 
> org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:122)
>   at 
> org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:106)
>   at 
> org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
>   at 
> org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:59)
>   at 
>

[jira] [Resolved] (KAFKA-5141) WorkerTest.testCleanupTasksOnStop transient failure due to NPE

2018-04-29 Thread Ewen Cheslack-Postava (JIRA) 

 [ 
https://issues.apache.org/jira/browse/KAFKA-5141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ewen Cheslack-Postava resolved KAFKA-5141.
--
Resolution: Fixed
  Assignee: Ewen Cheslack-Postava

Not sure of the fix, but we haven't seen this test failure in a long time. 
Pretty sure it has been fixed somewhere along the way. We can re-open if we see 
the same issue again.

> WorkerTest.testCleanupTasksOnStop transient failure due to NPE
> --
>
> Key: KAFKA-5141
> URL: https://issues.apache.org/jira/browse/KAFKA-5141
> Project: Kafka
>  Issue Type: Bug
>  Components: KafkaConnect
>Reporter: Ewen Cheslack-Postava
>Assignee: Ewen Cheslack-Postava
>Priority: Major
>  Labels: transient-unit-test-failure
>
> https://builds.apache.org/job/kafka-pr-jdk8-scala2.11/3281/testReport/junit/org.apache.kafka.connect.runtime/WorkerTest/testCleanupTasksOnStop/
> Looks like the potential culprit is a NullPointerException when trying to 
> start a connector. It's likely being caught and logged via a catch 
> (Throwable). From the lines being executed it looks like the null might be 
> due to the instantiation of the Connector returning null, although I don't 
> see how that is possible given the current code. We may need more logging 
> output to track the issue down.
> {quote}
> Error Message
> java.lang.AssertionError: 
>   Expectation failure on verify:
> WorkerSourceTask.run(): expected: 1, actual: 0
> Stacktrace
> java.lang.AssertionError: 
>   Expectation failure on verify:
> WorkerSourceTask.run(): expected: 1, actual: 0
>   at org.easymock.internal.MocksControl.verify(MocksControl.java:225)
>   at 
> org.powermock.api.easymock.internal.invocationcontrol.EasyMockMethodInvocationControl.verify(EasyMockMethodInvocationControl.java:132)
>   at org.powermock.api.easymock.PowerMock.verify(PowerMock.java:1466)
>   at org.powermock.api.easymock.PowerMock.verifyAll(PowerMock.java:1405)
>   at 
> org.apache.kafka.connect.runtime.WorkerTest.testCleanupTasksOnStop(WorkerTest.java:480)
>   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>   at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>   at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>   at java.lang.reflect.Method.invoke(Method.java:498)
>   at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:68)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:310)
>   at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:89)
>   at 
> org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:97)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:294)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:127)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:282)
>   at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:87)
>   at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:50)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:207)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:146)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:120)
>   at 
> org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
>   at 
> org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
>   at 
> org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:122)
>   at 
> org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:106)
>   at 
> org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
>   at 
>