java.lang.NullPointerException: null

GitHub | metas-mk | 9 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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    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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    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

      null

      at org.compiere.model.MPayment.setC_Order_ID()
    2. org.compiere.model
      MPayment.voidIt
      1. org.compiere.model.MPayment.setC_Order_ID(MPayment.java:2821)
      2. org.compiere.model.MPayment.reverseCorrectIt(MPayment.java:2529)
      3. org.compiere.model.MPayment.voidIt(MPayment.java:2461)
      3 frames
    3. org.compiere.process
      DocumentEngine.processIt
      1. org.compiere.process.DocumentEngine.voidIt(DocumentEngine.java:573)
      2. org.compiere.process.DocumentEngine.processIt0(DocumentEngine.java:368)
      3. org.compiere.process.DocumentEngine.processIt(DocumentEngine.java:296)
      4. org.compiere.process.DocumentEngine.processIt(DocumentEngine.java:264)
      4 frames
    4. de.metas.document
      AbstractDocActionBL.processIt
      1. de.metas.document.engine.impl.AbstractDocActionBL.processIt(AbstractDocActionBL.java:68)
      1 frame
    5. org.compiere.model
      MPayment.processIt
      1. org.compiere.model.MPayment.processIt(MPayment.java:1619)
      1 frame
    6. org.compiere.wf
      MWorkflow.startWait
      1. org.compiere.wf.MWFActivity.performWork(MWFActivity.java:953)
      2. org.compiere.wf.MWFActivity.run(MWFActivity.java:835)
      3. org.compiere.wf.MWFProcess.startNext(MWFProcess.java:375)
      4. org.compiere.wf.MWFProcess.checkActivities(MWFProcess.java:285)
      5. org.compiere.wf.MWFActivity.setWFState(MWFActivity.java:292)
      6. org.compiere.wf.MWFActivity.run(MWFActivity.java:855)
      7. org.compiere.wf.MWFProcess.startWork(MWFProcess.java:507)
      8. org.compiere.wf.MWorkflow.start(MWorkflow.java:700)
      9. org.compiere.wf.MWorkflow.startWait(MWorkflow.java:734)
      9 frames
    7. org.adempiere.util
      ProcessUtil.startWorkFlow
      1. org.adempiere.util.ProcessUtil.startWorkFlow(ProcessUtil.java:320)
      1 frame
    8. org.compiere.apps
      ProcessCtl.run
      1. org.compiere.apps.ProcessCtl.startWorkflow(ProcessCtl.java:609)
      2. org.compiere.apps.ProcessCtl.run(ProcessCtl.java:402)
      2 frames
    9. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame