java.lang.NullPointerException

GitHub | weeryan17 | 9 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 mcjty.deepresonance.integration.computers.TankDriver$OCDriver$InternalManagedEnvironment.getStrength()
    2. mcjty.deepresonance.integration
      TankDriver$OCDriver$InternalManagedEnvironment.getStrength
      1. mcjty.deepresonance.integration.computers.TankDriver$OCDriver$InternalManagedEnvironment.getStrength(TankDriver.java:54)[TankDriver$OCDriver$InternalManagedEnvironment.class:?]
      1 frame
    3. generated.li.cil
      CallWrapper_mcjty_deepresonance_integration_computers_TankDriver$OCDriver$InternalManagedEnvironment_getStrength.call
      1. generated.li.cil.oc.CallWrapper_mcjty_deepresonance_integration_computers_TankDriver$OCDriver$InternalManagedEnvironment_getStrength.call(Unknown Source)[?:?]
      1 frame
    4. li.cil.oc
      ExtendedLuaState$ExtendedLuaState$$anon$1.invoke
      1. li.cil.oc.server.machine.Callbacks$ComponentCallback.apply(Callbacks.scala:123)[Callbacks$ComponentCallback.class:?]
      2. li.cil.oc.server.network.Component$class.invoke(Component.scala:112)[Component$class.class:?]
      3. li.cil.oc.server.network.Network$ComponentBuilder$$anon$2.invoke(Network.scala:600)[Network$ComponentBuilder$$anon$2.class:?]
      4. li.cil.oc.server.machine.Machine.invoke(Machine.scala:356)[Machine.class:?]
      5. li.cil.oc.server.machine.luac.ComponentAPI$$anonfun$initialize$5$$anonfun$apply$6.apply(ComponentAPI.scala:78)[ComponentAPI$$anonfun$initialize$5$$anonfun$apply$6.class:?]
      6. li.cil.oc.server.machine.luac.ComponentAPI$$anonfun$initialize$5$$anonfun$apply$6.apply(ComponentAPI.scala:78)[ComponentAPI$$anonfun$initialize$5$$anonfun$apply$6.class:?]
      7. li.cil.oc.server.machine.luac.NativeLuaArchitecture.invoke(NativeLuaArchitecture.scala:55)[NativeLuaArchitecture.class:?]
      8. li.cil.oc.server.machine.luac.ComponentAPI$$anonfun$initialize$5.apply(ComponentAPI.scala:78)[ComponentAPI$$anonfun$initialize$5.class:?]
      9. li.cil.oc.server.machine.luac.ComponentAPI$$anonfun$initialize$5.apply(ComponentAPI.scala:74)[ComponentAPI$$anonfun$initialize$5.class:?]
      10. li.cil.oc.util.ExtendedLuaState$ExtendedLuaState$$anon$1.invoke(ExtendedLuaState.scala:24)[ExtendedLuaState$ExtendedLuaState$$anon$1.class:?]
      10 frames
    5. li.cil.repack
      LuaState.call
      1. li.cil.repack.com.naef.jnlua.LuaState.lua_pcall(Native Method)[LuaState.class:?]
      2. li.cil.repack.com.naef.jnlua.LuaState.call(LuaState.java:677)[LuaState.class:?]
      2 frames
    6. li.cil.oc
      Rack.func_73660_a
      1. li.cil.oc.server.machine.luac.NativeLuaArchitecture.runSynchronized(NativeLuaArchitecture.scala:177)[NativeLuaArchitecture.class:?]
      2. li.cil.oc.server.machine.Machine.update(Machine.scala:560)[Machine.class:?]
      3. li.cil.oc.server.component.Server.update(Server.scala:203)[Server.class:?]
      4. li.cil.oc.common.inventory.ComponentInventory$class.updateComponents(ComponentInventory.scala:38)[ComponentInventory$class.class:?]
      5. li.cil.oc.common.tileentity.Rack.updateComponents(Rack.scala:32)[Rack.class:?]
      6. li.cil.oc.common.tileentity.Rack.updateEntity(Rack.scala:369)[Rack.class:?]
      7. li.cil.oc.common.tileentity.traits.Tickable$class.update(Tickable.scala:6)[Tickable$class.class:?]
      8. li.cil.oc.common.tileentity.Rack.func_73660_a(Rack.scala:32)[Rack.class:?]
      8 frames
    7. Minecraft
      WorldServer.func_72939_s
      1. net.minecraft.world.World.func_72939_s(World.java:1802)[aid.class:?]
      2. net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:618)[ls.class:?]
      2 frames
    8. MC Server
      MinecraftServer.run
      1. net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:709)[MinecraftServer.class:?]
      2. net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613)[MinecraftServer.class:?]
      3. net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:149)[bzl.class:?]
      4. net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471)[MinecraftServer.class:?]
      4 frames
    9. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)[?:1.8.0_25]
      1 frame