New findbugs warning after MAPREDUCE-2494
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Key: MAPREDUCE-2573
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2573
Project: Hadoop Map/Reduce
Issue Type: Bug
Reporter: Todd Lipcon
MAPREDUCE-2494 introduced the following findbugs warning in trunk:
TrackerDistributedCacheManager.java:739, SIC_INNER_SHOULD_BE_STATIC, Priority:
Low
Should
org.apache.hadoop.mapreduce.filecache.TrackerDistributedCacheManager$CacheDir
be a _static_ inner class?
This class is an inner class, but does not use its embedded reference to the
object which created it. This reference makes the instances of the class
larger, and may keep the reference to the creator object alive longer than
necessary. If possible, the class should be made static.
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