java.lang.NullPointerException

hadoop-hdfs-issues | Uma Maheswara Rao G (JIRA) | 3 years ago
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  1. 0

    [jira] [Commented] (HDFS-5710) FSDirectory#getFullPathName should check inodes against null

    hadoop-hdfs-issues | 3 years ago | Uma Maheswara Rao G (JIRA)
    java.lang.NullPointerException
  2. 0

    NPE in BlockManager

    GitHub | 2 years ago | jimdowling
    java.lang.NullPointerException
  3. 0

    NPE on ubuntu 14.04

    GitHub | 1 year ago | jimdowling
    java.lang.NullPointerException
  4. Speed up your debug routine!

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  5. 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
  6. 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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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.apache.hadoop.hdfs.server.namenode.FSDirectory.getFullPathName()
    2. Apache Hadoop HDFS
      BlockManager$ReplicationMonitor.run
      1. org.apache.hadoop.hdfs.server.namenode.FSDirectory.getFullPathName(FSDirectory.java:1871)
      2. org.apache.hadoop.hdfs.server.namenode.INode.getFullPathName(INode.java:482)
      3. org.apache.hadoop.hdfs.server.namenode.INodeFile.getName(INodeFile.java:316)
      4. org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy.chooseTarget(BlockPlacementPolicy.java:118)
      5. org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeReplicationWorkForBlocks(BlockManager.java:1259)
      6. org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeReplicationWork(BlockManager.java:1167)
      7. org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeDatanodeWork(BlockManager.java:3158)
      8. org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$ReplicationMonitor.run(BlockManager.java:3112)
      8 frames
    3. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:724)
      1 frame