java.lang.NullPointerException: This exception has no message.

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via Stack Overflow by brijesh MISHRA
, 1 year ago
This exception has no message.
via Stack Overflow by Tal Yitzhak
, 8 months ago
via GitHub by genhirano
, 2 years ago
This exception has no message.
java.lang.NullPointerException:
at java.lang.ProcessBuilder.start(Unknown Source)
at org.apache.hadoop.util.Shell.runCommand(Shell.java:482)
at org.apache.hadoop.util.Shell.run(Shell.java:455)
at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:715)
at org.apache.hadoop.util.Shell.execCommand(Shell.java:808)
at org.apache.hadoop.util.Shell.execCommand(Shell.java:791)
at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:656)
at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:444)
at org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:293)
at org.apache.hadoop.mapreduce.JobSubmissionFiles.getStagingDir(JobSubmissionFiles.java:133)
at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:145)
at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1297)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1656)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:1294)
at undefined.WordCount.main(WordCount.java:81)

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