java.lang.NullPointerException

Stack Overflow | DQQpy | 3 weeks ago
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  1. 0

    Element appears magically in PriorityQueue?

    Stack Overflow | 3 weeks ago | DQQpy
    java.lang.NullPointerException
  2. 0
    samebug tip
    This seems to be caused by too many connections to the same server, saturating it and causing the exception! More info on the link
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    NullPointerException from command line, not in IntelliJ debugger

    Stack Overflow | 2 years ago | Andrew Breksa
    java.lang.NullPointerException
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    Intermittent REST test issues

    GitHub | 2 years ago | mattheworiordan
    org.junit.ComparisonFailure: expected:<Test data (enter_[before_attach])> but was:<Test data (enter_[simple])>

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at StarcraftShortestPath.aStar()
    2. Unknown
      StarcraftTest.test1stRoute
      1. StarcraftShortestPath.aStar(StarcraftShortestPath.java:117)
      2. StarcraftShortestPath.findPath(StarcraftShortestPath.java:141)
      3. StarcraftTest.test1stRoute(StarcraftTest.java:20)
      3 frames
    3. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      4. java.lang.reflect.Method.invoke(Unknown Source)
      4 frames
    4. JUnit
      ParentRunner.run
      1. org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
      2. org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
      3. org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
      4. org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
      5. org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
      6. org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
      7. org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
      8. org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
      9. org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
      10. org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
      11. org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
      12. org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
      13. org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
      14. org.junit.runners.ParentRunner.run(ParentRunner.java:363)
      14 frames
    5. JUnit4 Runner
      JUnit4TestReference.run
      1. org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
      1 frame
    6. JUnit3 Runner
      RemoteTestRunner.main
      1. org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
      2. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
      3. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
      4. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
      5. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
      5 frames