java.lang.NullPointerException

broadinstitute.org | 9 months ago
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    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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    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.concurrent.locks.AbstractQueuedSynchronizer.hasQueuedPredecessors()
    2. Java RT
      PriorityBlockingQueue.peek
      1. java.util.concurrent.locks.AbstractQueuedSynchronizer.hasQueuedPredecessors(AbstractQueuedSynchronizer.java:1453)
      2. java.util.concurrent.locks.ReentrantLock$FairSync.tryAcquire(ReentrantLock.java:240)
      3. java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1136)
      4. java.util.concurrent.locks.ReentrantLock$FairSync.lock(ReentrantLock.java:229)
      5. java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:290)
      6. java.util.concurrent.PriorityBlockingQueue.peek(PriorityBlockingQueue.java:286)
      6 frames
    3. org.broadinstitute.sting
      NanoScheduler$MapReduceJob.run
      1. org.broadinstitute.sting.utils.nanoScheduler.Reducer.reduceNextValueInQueue(Reducer.java:89)
      2. org.broadinstitute.sting.utils.nanoScheduler.Reducer.reduceAsMuchAsPossible(Reducer.java:120)
      3. org.broadinstitute.sting.utils.nanoScheduler.NanoScheduler$MapReduceJob.run(NanoScheduler.java:510)
      3 frames
    4. Java RT
      Thread.run
      1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
      2. java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
      3. java.util.concurrent.FutureTask.run(FutureTask.java:166)
      4. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
      5. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
      6. java.lang.Thread.run(Thread.java:636)
      6 frames