java.lang.ClassCastException: java.util.ArrayList cannot be cast to java.util.Map

Google Groups | Vinay Sudhakaran | 3 years ago
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    Error during Storm execution: java.util.ArrayList cannot be cast to java.util.Map

    Google Groups | 3 years ago | Vinay Sudhakaran
    java.lang.ClassCastException: java.util.ArrayList cannot be cast to java.util.Map

    Root Cause Analysis

    1. java.lang.ClassCastException

      java.util.ArrayList cannot be cast to java.util.Map

      at backtype.storm.utils.Utils.findAndReadConfigFile()
    2. backtype.storm.utils
      Utils.findAndReadConfigFile
      1. backtype.storm.utils.Utils.findAndReadConfigFile(Utils.java:120)[storm-core-0.9.0-wip21.jar:na]
      1 frame
    3. com.yahoo.storm
      TestIntegration.setup
      1. com.yahoo.storm.yarn.Config.readStormConfig(Config.java:56)[classes/:na]
      2. com.yahoo.storm.yarn.Config.readStormConfig(Config.java:42)[classes/:na]
      3. com.yahoo.storm.yarn.TestIntegration.setup(TestIntegration.java:82)[test-classes/:na]
      3 frames
    4. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[na:1.7.0_45]
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)[na:1.7.0_45]
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[na:1.7.0_45]
      4. java.lang.reflect.Method.invoke(Method.java:606)[na:1.7.0_45]
      4 frames
    5. JUnit
      ParentRunner.run
      1. org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)[junit-4.10.jar:na]
      2. org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)[junit-4.10.jar:na]
      3. org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)[junit-4.10.jar:na]
      4. org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)[junit-4.10.jar:na]
      5. org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)[junit-4.10.jar:na]
      6. org.junit.runners.ParentRunner.run(ParentRunner.java:300)[junit-4.10.jar:na]
      6 frames
    6. JUnit4 Provider
      JUnit4Provider.invoke
      1. org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)[surefire-junit4-2.10.jar:2.10]
      2. org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)[surefire-junit4-2.10.jar:2.10]
      3. org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)[surefire-junit4-2.10.jar:2.10]
      3 frames
    7. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[na:1.7.0_45]
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)[na:1.7.0_45]
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[na:1.7.0_45]
      4. java.lang.reflect.Method.invoke(Method.java:606)[na:1.7.0_45]
      4 frames
    8. SureFire
      ForkedBooter.main
      1. org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)[surefire-api-2.10.jar:2.10]
      2. org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)[surefire-booter-2.10.jar:2.10]
      3. org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:175)[surefire-booter-2.10.jar:2.10]
      4. org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:107)[surefire-booter-2.10.jar:2.10]
      5. org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:68)[surefire-booter-2.10.jar:2.10]
      5 frames