java.lang.NullPointerException

GitHub | neerajtiwar | 7 months ago
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  1. 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
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  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
  4. 0

    Cloud Foundry v2 in Grails

    Stack Overflow | 2 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at com.googlecode.jmxtrans.model.output.support.opentsdb.OpenTSDBMessageFormatter.processOneMetric()
    2. com.googlecode.jmxtrans
      OpenTSDBMessageFormatter$1.apply
      1. com.googlecode.jmxtrans.model.output.support.opentsdb.OpenTSDBMessageFormatter.processOneMetric(OpenTSDBMessageFormatter.java:196)
      2. com.googlecode.jmxtrans.model.output.support.opentsdb.OpenTSDBMessageFormatter.formatResult(OpenTSDBMessageFormatter.java:159)
      3. com.googlecode.jmxtrans.model.output.support.opentsdb.OpenTSDBMessageFormatter.access$000(OpenTSDBMessageFormatter.java:54)
      4. com.googlecode.jmxtrans.model.output.support.opentsdb.OpenTSDBMessageFormatter$1.apply(OpenTSDBMessageFormatter.java:170)
      5. com.googlecode.jmxtrans.model.output.support.opentsdb.OpenTSDBMessageFormatter$1.apply(OpenTSDBMessageFormatter.java:166)
      5 frames
    3. Guava
      FluentIterable.toList
      1. com.google.common.collect.Iterators$8.transform(Iterators.java:817)
      2. com.google.common.collect.TransformedIterator.next(TransformedIterator.java:48)
      3. com.google.common.collect.TransformedIterator.next(TransformedIterator.java:48)
      4. com.google.common.collect.Iterators$5.hasNext(Iterators.java:569)
      5. com.google.common.collect.ImmutableList.copyOf(ImmutableList.java:249)
      6. com.google.common.collect.ImmutableList.copyOf(ImmutableList.java:209)
      7. com.google.common.collect.FluentIterable.toList(FluentIterable.java:484)
      7 frames
    4. com.googlecode.jmxtrans
      ResultProcessor$1.run
      1. com.googlecode.jmxtrans.model.output.support.opentsdb.OpenTSDBMessageFormatter.formatResults(OpenTSDBMessageFormatter.java:173)
      2. com.googlecode.jmxtrans.model.output.OpenTSDBWriter.internalWrite(OpenTSDBWriter.java:116)
      3. com.googlecode.jmxtrans.model.output.BaseOutputWriter.doWrite(BaseOutputWriter.java:157)
      4. com.googlecode.jmxtrans.jmx.ResultProcessor$1.run(ResultProcessor.java:58)
      4 frames
    5. Java RT
      Thread.run
      1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      2. java.util.concurrent.FutureTask.run(FutureTask.java:266)
      3. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      4. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      5. java.lang.Thread.run(Thread.java:745)
      5 frames