java.lang.NullPointerException

eclipse.org | 8 months ago
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    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

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.eclipse.hudson.jna.NativeUnixSupport.all()
    2. Hudson
      NativeUtils.<clinit>
      1. org.eclipse.hudson.jna.NativeUnixSupport.all(NativeUnixSupport.java:46)
      2. org.eclipse.hudson.jna.NativeUtils.getAvailableNativeUnixSupports(NativeUtils.java:74)
      3. org.eclipse.hudson.jna.NativeUtils.<init>(NativeUtils.java:48)
      4. org.eclipse.hudson.jna.NativeUtils.<clinit>(NativeUtils.java:44)
      4 frames
    3. Java RT
      ObjectInputStream.readObject
      1. java.io.ObjectStreamClass.hasStaticInitializer(Native Method)
      2. java.io.ObjectStreamClass.computeDefaultSUID(ObjectStreamClass.java:1696)
      3. java.io.ObjectStreamClass.access$100(ObjectStreamClass.java:52)
      4. java.io.ObjectStreamClass$1.run(ObjectStreamClass.java:205)
      5. java.security.AccessController.doPrivileged(Native Method)
      6. java.io.ObjectStreamClass.getSerialVersionUID(ObjectStreamClass.java:202)
      7. java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:558)
      8. java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1582)
      9. java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1495)
      10. java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1731)
      11. java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
      12. java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946)
      13. java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870)
      14. java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
      15. java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
      16. java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
      16 frames
    4. Hudson :: Remoting Layer
      Request$2.run
      1. hudson.remoting.UserRequest.deserialize(UserRequest.java:171)
      2. hudson.remoting.UserRequest.perform(UserRequest.java:91)
      3. hudson.remoting.UserRequest.perform(UserRequest.java:41)
      4. hudson.remoting.Request$2.run(Request.java:276)
      4 frames
    5. Java RT
      Thread.run
      1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
      2. java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
      3. java.util.concurrent.FutureTask.run(FutureTask.java:138)
      4. java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
      5. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
      6. java.lang.Thread.run(Thread.java:680)
      6 frames