java.util.concurrent.ExecutionException: java.lang.NullPointerException

Stack Overflow | Apply55gx | 7 months ago
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    Stack Overflow | 7 months ago | Apply55gx
    java.util.concurrent.ExecutionException: java.lang.NullPointerException
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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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    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 net.minecraft.server.v1_8_R3.WorldServer.sendParticles()
    2. net.minecraft.server
      PlayerConnectionUtils$1.run
      1. net.minecraft.server.v1_8_R3.WorldServer.sendParticles(WorldServer.java:1179)[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
      2. net.minecraft.server.v1_8_R3.EntityLiving.a(EntityLiving.java:152)[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
      3. net.minecraft.server.v1_8_R3.EntityPlayer.a(EntityPlayer.java:621)[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
      4. net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:456)[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
      5. net.minecraft.server.v1_8_R3.PacketPlayInFlying.a(SourceFile:126)[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
      6. net.minecraft.server.v1_8_R3.PacketPlayInFlying.a(SourceFile:8)[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
      7. net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13)[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
      7 frames
    3. Java RT
      FutureTask.run
      1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[?:1.8.0_65]
      2. java.util.concurrent.FutureTask.run(FutureTask.java:266)[?:1.8.0_65]
      2 frames
    4. net.minecraft.server
      MinecraftServer.run
      1. net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44)[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
      2. net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:715)[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
      3. net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374)[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
      4. net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654)[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
      5. net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557)[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
      5 frames
    5. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)[?:1.8.0_65]
      1 frame