Fix warnings found by code analysis tools
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Key: CHUKWA-621
URL: https://issues.apache.org/jira/browse/CHUKWA-621
Project: Chukwa
Issue Type: Bug
Components: build and test code, data collection, Data Processors,
input tools, MR Data Processors, User Interface
Affects Versions: 0.5.0
Environment: Java
Reporter: Eric Yang
Assignee: Eric Yang
Fix For: 0.5.0
Clean up java coding style bugs found by findbugs and pmd.
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