java.lang.NullPointerException

GitHub | alicheek | 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
  2. 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
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  4. 0

    Cloud Foundry v2 in Grails

    Stack Overflow | 3 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object
  5. 0

    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

      No message provided

      at matteroverdrive.data.ItemPattern.<init>()
    2. matteroverdrive.data
      ItemPattern.<init>
      1. matteroverdrive.data.ItemPattern.<init>(ItemPattern.java:29)[ItemPattern.class:?]
      2. matteroverdrive.data.ItemPattern.<init>(ItemPattern.java:25)[ItemPattern.class:?]
      2 frames
    3. matteroverdrive.machines.analyzer
      TileEntityMachineMatterAnalyzer.onNetworkTick
      1. matteroverdrive.machines.analyzer.components.MatterNetworkComponentAnalyzer.manageValidDestinationCheck(MatterNetworkComponentAnalyzer.java:154)[MatterNetworkComponentAnalyzer.class:?]
      2. matteroverdrive.machines.analyzer.components.MatterNetworkComponentAnalyzer.onNetworkTick(MatterNetworkComponentAnalyzer.java:109)[MatterNetworkComponentAnalyzer.class:?]
      3. matteroverdrive.machines.analyzer.TileEntityMachineMatterAnalyzer.onNetworkTick(TileEntityMachineMatterAnalyzer.java:295)[TileEntityMachineMatterAnalyzer.class:?]
      3 frames
    4. matteroverdrive.handler
      TickHandler.onWorldTick
      1. matteroverdrive.handler.MatterNetworkTickHandler.updateHandler(MatterNetworkTickHandler.java:45)[MatterNetworkTickHandler.class:?]
      2. matteroverdrive.handler.TickHandler.onWorldTick(TickHandler.java:110)[TickHandler.class:?]
      2 frames
    5. MC Forge
      FMLCommonHandler.onPreWorldTick
      1. cpw.mods.fml.common.eventhandler.ASMEventHandler_525_TickHandler_onWorldTick_WorldTickEvent.invoke(.dynamic)[?:1.7.10-1614.58]
      2. cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)[ASMEventHandler.class:1.7.10-1614.58]
      3. cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140)[EventBus.class:1.7.10-1614.58]
      4. cpw.mods.fml.common.FMLCommonHandler.onPreWorldTick(FMLCommonHandler.java:273)[FMLCommonHandler.class:1.7.10-1614.58]
      4 frames
    6. MC Server
      MinecraftServer.run
      1. net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:957)[MinecraftServer.class:?]
      2. net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:432)[lt.class:?]
      3. net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:841)[MinecraftServer.class:?]
      4. net.minecraft.server.MinecraftServer.run(MinecraftServer.java:693)[MinecraftServer.class:?]
      4 frames
    7. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)[?:1.8.0_101]
      1 frame