[jira] [Created] (FLINK-7736) Fix some of the alerts raised by lgtm.com

[Shang Yuanchun (Jira)]

Malcolm Taylor created FLINK-7736:
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             Summary: Fix some of the alerts raised by lgtm.com
                 Key: FLINK-7736
                 URL: https://issues.apache.org/jira/browse/FLINK-7736
             Project: Flink
          Issue Type: Improvement
            Reporter: Malcolm Taylor
            Assignee: Malcolm Taylor


lgtm.com has identified a number of issues giving scope for improvement in the code: [https://lgtm.com/projects/g/apache/flink/alerts/?mode=list]
This issue is to address some of the simpler ones. Some of these are quite clear bugs such as off-by-one errors. Others are areas where the code might be made clearer, such as use of a variable name which shadows another variable.



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