java.lang.NullPointerException

Apache's JIRA Issue Tracker | Gregory Chanan | 2 years 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 org.apache.solr.cloud.ZkTestServer$ZKServerMain.shutdown()
    2. Apache Solr Core
      SaslZkACLProviderTest.tearDown
      1. org.apache.solr.cloud.ZkTestServer$ZKServerMain.shutdown(ZkTestServer.java:332)
      2. org.apache.solr.cloud.ZkTestServer.shutdown(ZkTestServer.java:492)
      3. org.apache.solr.cloud.SaslZkACLProviderTest$SaslZkTestServer.shutdown(SaslZkACLProviderTest.java:211)
      4. org.apache.solr.cloud.SaslZkACLProviderTest.tearDown(SaslZkACLProviderTest.java:109)
      4 frames
    3. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame