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  1. Kafka
  2. KAFKA-7799

Fix flaky test RestServerTest.testCORSEnabled

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    Details

    • Type: Test
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.2.0, 2.0.2, 2.1.2
    • Component/s: KafkaConnect
    • Labels:
      None

      Description

      Starting to see this failure quite a lot, locally and on jenkins:

      
      org.apache.kafka.connect.runtime.rest.RestServerTest.testCORSEnabled
      
      Failing for the past 7 builds (Since Failed#18600 )
      Took 0.7 sec.
      Error Message
      java.lang.AssertionError: expected:<http://bar.com> but was:<null>
      Stacktrace
      java.lang.AssertionError: expected:<http://bar.com> but was:<null>
      	at org.junit.Assert.fail(Assert.java:88)
      	at org.junit.Assert.failNotEquals(Assert.java:834)
      	at org.junit.Assert.assertEquals(Assert.java:118)
      	at org.junit.Assert.assertEquals(Assert.java:144)
      	at org.apache.kafka.connect.runtime.rest.RestServerTest.checkCORSRequest(RestServerTest.java:221)
      	at org.apache.kafka.connect.runtime.rest.RestServerTest.testCORSEnabled(RestServerTest.java:84)
      	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:326)
      	at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:89)
      	at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:97)
      

      If it helps, I see an uncaught exception in the stdout:

      [2019-01-08 19:35:23,664] ERROR Uncaught exception in REST call to /connector-plugins/FileStreamSource/validate (org.apache.kafka.connect.runtime.rest.errors.ConnectExceptionMapper:61)
      javax.ws.rs.NotFoundException: HTTP 404 Not Found
      	at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:274)
      	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:272)
      	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:268)
      	at org.glassfish.jersey.internal.Errors.process(Errors.java:316)
      	at org.glassfish.jersey.internal.Errors.process(Errors.java:298)
      	at org.glassfish.jersey.internal.Errors.process(Errors.java:268)
      	at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:289)
      	at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:256)
      	at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:703)
      

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            • Assignee:
              hachikuji Jason Gustafson
              Reporter:
              hachikuji Jason Gustafson
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              Dates

              • Created:
                Updated:
                Resolved: