java.lang.NullPointerException: null

GitHub | kewang | 9 months ago
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  1. 0

    GitHub comment 4#235313046

    GitHub | 9 months ago | kewang
    java.lang.NullPointerException: null
  2. 0

    Develottment: Android TDD with Robolectric and JUnit

    develottment.com | 2 years ago
    java.lang.NullPointerException
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    UI hang on console hyperlink calculation

    YouTrack | 3 years ago
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    Root Cause Analysis

    1. java.lang.NullPointerException

      null

      at tw.kewang.logback.appender.AppTest.testApp()
    2. tw.kewang.logback
      AppTest.testApp
      1. tw.kewang.logback.appender.AppTest.testApp(AppTest.java:16)
      1 frame
    3. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:606)
      4 frames
    4. JUnit
      JUnitCore.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.runners.ParentRunner.runLeaf(ParentRunner.java:325)
      6. org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
      7. org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
      8. org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
      9. org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
      10. org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
      11. org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
      12. org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
      13. org.junit.runners.ParentRunner.run(ParentRunner.java:363)
      14. org.junit.runner.JUnitCore.run(JUnitCore.java:137)
      14 frames
    5. IntelliJ junit4 module
      JUnit4IdeaTestRunner.startRunnerWithArgs
      1. com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117)
      2. com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)
      2 frames
    6. IDEA
      JUnitStarter.main
      1. com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:253)
      2. com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:84)
      2 frames
    7. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:606)
      4 frames
    8. IDEA
      AppMain.main
      1. com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
      1 frame