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

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via Google Groups by Mateusz Berezecki, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at org.apache.hadoop.mapred.MapTask$TrackedRecordReader.close(MapTask.java:210)
at org.apache.hadoop.mapred.MapTask.closeQuietly(MapTask.java:1976)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:468)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693)

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