java.lang.NullPointerException

GitHub | ctrueden | 2 years ago
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  1. 0

    DefaultPrefService can throw NPE

    GitHub | 2 years ago | ctrueden
    java.lang.NullPointerException
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    NPE when closing JabRef with new unsaved database

    GitHub | 1 year ago | oscargus
    java.lang.NullPointerException
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  4. 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
  5. 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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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at java.util.prefs.AbstractPreferences.put()
    2. Java RT
      AbstractPreferences.put
      1. java.util.prefs.AbstractPreferences.put(AbstractPreferences.java:241)
      1 frame
    3. SciJava Common
      DefaultThreadService$2.call
      1. org.scijava.prefs.DefaultPrefService.put(DefaultPrefService.java:183)
      2. org.scijava.module.DefaultModuleService.save(DefaultModuleService.java:280)
      3. org.scijava.module.process.SaveInputsPreprocessor.saveValue(SaveInputsPreprocessor.java:74)
      4. org.scijava.module.process.SaveInputsPreprocessor.process(SaveInputsPreprocessor.java:65)
      5. org.scijava.module.ModuleRunner.preProcess(ModuleRunner.java:104)
      6. org.scijava.module.ModuleRunner.run(ModuleRunner.java:156)
      7. org.scijava.module.ModuleRunner.call(ModuleRunner.java:126)
      8. org.scijava.module.ModuleRunner.call(ModuleRunner.java:65)
      9. org.scijava.thread.DefaultThreadService$2.call(DefaultThreadService.java:164)
      9 frames
    4. Java RT
      Thread.run
      1. java.util.concurrent.FutureTask.run(FutureTask.java:266)
      2. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      3. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      4. java.lang.Thread.run(Thread.java:745)
      4 frames