yuqi created IOTDB-930:
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Summary: Enable checkstyle plugin and fix checkstyle problem
according to checkstyle file
Key: IOTDB-930
URL: https://issues.apache.org/jira/browse/IOTDB-930
Project: Apache IoTDB
Issue Type: Improvement
Reporter: yuqi-- This message was sent by Atlassian Jira (v8.3.4#803005)
