java.lang.NullPointerException

tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.
  1. 0

    Hadoop - Exception in thread "main" java.lang.NullPointerException

    Stack Overflow | 2 years ago
    java.lang.NullPointerException
  2. Speed up your debug routine!

    Automated exception search integrated into your IDE

  3. 0

    hadoop 2.2.0 wordcount prg unable to run from remote

    Stack Overflow | 3 years ago | abishek rao
    java.lang.NullPointerException
  4. 0

    at org.apache.hadoop.examples.WordCount.main(WordCount.java:84)

    Stack Overflow | 3 years ago | jarrick
    java.lang.NullPointerException

  1. muffinmannen 1 times, last 1 year ago
  2. rp 1 times, last 4 months ago
18 unregistered visitors
Not finding the right solution?
Take a tour to get the most out of Samebug.

Tired of useless tips?

Automated exception search integrated into your IDE

Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at java.lang.ProcessBuilder.start()
  2. Java RT
    ProcessBuilder.start
    1. java.lang.ProcessBuilder.start(ProcessBuilder.java:1010)
    1 frame
  3. Hadoop
    FilterFileSystem.mkdirs
    1. org.apache.hadoop.util.Shell.runCommand(Shell.java:483)
    2. org.apache.hadoop.util.Shell.run(Shell.java:456)
    3. org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:722)
    4. org.apache.hadoop.util.Shell.execCommand(Shell.java:815)
    5. org.apache.hadoop.util.Shell.execCommand(Shell.java:798)
    6. org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:731)
    7. org.apache.hadoop.fs.RawLocalFileSystem.mkOneDirWithMode(RawLocalFileSystem.java:489)
    8. org.apache.hadoop.fs.RawLocalFileSystem.mkdirsWithOptionalPermission(RawLocalFileSystem.java:530)
    9. org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:507)
    10. org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:305)
    10 frames
  4. Hadoop
    Job$10.run
    1. org.apache.hadoop.mapreduce.JobSubmissionFiles.getStagingDir(JobSubmissionFiles.java:133)
    2. org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:144)
    3. org.apache.hadoop.mapreduce.Job$10.run(Job.java:1290)
    4. org.apache.hadoop.mapreduce.Job$10.run(Job.java:1287)
    4 frames
  5. Java RT
    Subject.doAs
    1. java.security.AccessController.doPrivileged(Native Method)
    2. javax.security.auth.Subject.doAs(Subject.java:415)
    2 frames
  6. Hadoop
    UserGroupInformation.doAs
    1. org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
    1 frame
  7. Hadoop
    Job.waitForCompletion
    1. org.apache.hadoop.mapreduce.Job.submit(Job.java:1287)
    2. org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1308)
    2 frames
  8. MapReduce.HadMapReduce
    RecCount.run
    1. MapReduce.HadMapReduce.RecCount.run(RecCount.java:22)
    1 frame
  9. Hadoop
    ToolRunner.run
    1. org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    2. org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
    2 frames
  10. MapReduce.HadMapReduce
    RecCount.main
    1. MapReduce.HadMapReduce.RecCount.main(RecCount.java:26)
    1 frame