[MAPREDUCE-6236] Fix findbugs warnings in hadoop-mapreduce-client-core

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Component/s: client
• Assignee: Masatake Iwasaki
• Reporter: Masatake Iwasaki
• Created: 31/Jan/15 00:09
• Updated: 02/Feb/15 21:35
• Resolved: 02/Feb/15 21:35

Description

Dm	Found reliance on default encoding in org.apache.hadoop.mapreduce.security.SecureShuffleUtils.toHex(byte[]): java.io.ByteArrayOutputStream.toString()
Dm	Found reliance on default encoding in org.apache.hadoop.mapreduce.security.SecureShuffleUtils.toHex(byte[]): new java.io.PrintStream(OutputStream)
Bx	Boxing/unboxing to parse a primitive org.apache.hadoop.mapred.TaskLogAppender.setOptionsFromSystemProperties()
Bx	org.apache.hadoop.mapreduce.lib.fieldsel.FieldSelectionHelper.extractFields(String[], List) invokes inefficient new Integer(String) constructor; use Integer.valueOf(String) instead
RCN	Redundant nullcheck of info, which is known to be non-null in org.apache.hadoop.mapred.IndexCache.removeMap(String)
RCN	Redundant nullcheck of org.apache.hadoop.mapreduce.task.JobContextImpl.getWorkingDirectory(), which is known to be non-null in org.apache.hadoop.mapreduce.JobSubmitter.addLog4jToDistributedCache(Job, Path)
RCN	Redundant nullcheck of org.apache.hadoop.mapreduce.task.JobContextImpl.getWorkingDirectory(), which is known to be non-null in org.apache.hadoop.mapreduce.JobSubmitter.copyAndConfigureFiles(Job, Path)
RCN	Redundant nullcheck of value, which is known to be non-null in org.apache.hadoop.mapreduce.util.ResourceBundles.getValue(String, String, String, Object)
UrF	Unread public/protected field: org.apache.hadoop.mapred.lib.CombineFileRecordReader.rrClass
UrF	Unread public/protected field: org.apache.hadoop.mapreduce.lib.input.CombineFileRecordReader.rrClass
UuF	Unused public or protected field: org.apache.hadoop.mapred.lib.CombineFileRecordReader.fs
UuF	Unused public or protected field: org.apache.hadoop.mapreduce.lib.input.CombineFileRecordReader.fs

Issue Links

• duplicates: MAPREDUCE-6225 Fix new findbug warnings in hadoop-mapreduce-client-core