[jira] [Created] (FLINK-1007) Clean up and refactor on Scala and Java code

[Shang Yuanchun (Jira)]

Henry Saputra created FLINK-1007:
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             Summary: Clean up and refactor on Scala and Java code
                 Key: FLINK-1007
                 URL: https://issues.apache.org/jira/browse/FLINK-1007
             Project: Flink
          Issue Type: Improvement
            Reporter: Henry Saputra
            Assignee: Henry Saputra
            Priority: Minor


First cleanup attempt, mostly on Scala code, to follow guidelines from http://docs.scala-lang.org/style:

1. Remove return statement from Scala code where it is not necessary (end of method definition)
2. Remove extra semicolon (;) from Scala and Java code
3. First drop to abide to 100 chars per line for Scala code.
   Will send another PR for other files as I have encountered.
4. Remove parentheses for empty argument methods that do not have side effect
   (see http://www.artima.com/pins1ed/composition-and-inheritance.html#i1343251059-1)
5. Remove unused import statements in Scala code as I have encountered them.

This is first drop to refactor and cleanup Scala code to see comment/ response from community.
More PRs for follow up code will come.



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