java.lang.NullPointerException

incubator-accumulo-user | Jason Trost | 5 years ago
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    MockInstance usage not working...?

    incubator-accumulo-user | 5 years ago | Jason Trost
    java.lang.NullPointerException
  2. 0

    Getting a nullpointer exception when switching displayables in J2ME

    Stack Overflow | 6 years ago | Pallinder
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
  3. 0

    J2ME (Java) - Null Pointer Exception caught in Display Class

    Stack Overflow | 6 years ago | Tom
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
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    Cloud Foundry v2 in Grails

    Stack Overflow | 3 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object
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    NullPointerException in MIDlet with left soft key

    Stack Overflow | 6 years ago | berry120
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callItemListener(), bci=57 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=57 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.apache.commons.jci.monitor.FilesystemAlterationObserverImpl$MonitorFileImpl.listFiles()
    2. Apache Commons JCI FileAlterationMonitor
      FilesystemAlterationObserverImpl.checkAndNotify
      1. org.apache.commons.jci.monitor.FilesystemAlterationObserverImpl$MonitorFileImpl.listFiles(FilesystemAlterationObserverImpl.java:64)
      2. org.apache.commons.jci.monitor.FilesystemAlterationObserverImpl$Entry.compareChilds(FilesystemAlterationObserverImpl.java:119)
      3. org.apache.commons.jci.monitor.FilesystemAlterationObserverImpl$Entry.needsToBeDeleted(FilesystemAlterationObserverImpl.java:203)
      4. org.apache.commons.jci.monitor.FilesystemAlterationObserverImpl$Entry.compareChilds(FilesystemAlterationObserverImpl.java:137)
      5. org.apache.commons.jci.monitor.FilesystemAlterationObserverImpl$Entry.needsToBeDeleted(FilesystemAlterationObserverImpl.java:203)
      6. org.apache.commons.jci.monitor.FilesystemAlterationObserverImpl$Entry.compareChilds(FilesystemAlterationObserverImpl.java:137)
      7. org.apache.commons.jci.monitor.FilesystemAlterationObserverImpl$Entry.needsToBeDeleted(FilesystemAlterationObserverImpl.java:203)
      8. org.apache.commons.jci.monitor.FilesystemAlterationObserverImpl$Entry.compareChilds(FilesystemAlterationObserverImpl.java:137)
      9. org.apache.commons.jci.monitor.FilesystemAlterationObserverImpl$Entry.needsToBeDeleted(FilesystemAlterationObserverImpl.java:203)
      10. org.apache.commons.jci.monitor.FilesystemAlterationObserverImpl.checkEntries(FilesystemAlterationObserverImpl.java:317)
      11. org.apache.commons.jci.monitor.FilesystemAlterationObserverImpl.checkAndNotify(FilesystemAlterationObserverImpl.java:331)
      11 frames
    3. org.apache.accumulo
      AccumuloFilesystemAlterationMonitor.run
      1. org.apache.accumulo.start.classloader.AccumuloFilesystemAlterationMonitor.run(AccumuloFilesystemAlterationMonitor.java:121)
      1 frame
    4. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:722)
      1 frame