sunjincheng created IOTDB-1166:
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Summary: Remove redundant toString() calls
Key: IOTDB-1166
URL: https://issues.apache.org/jira/browse/IOTDB-1166
Project: Apache IoTDB
Issue Type: Improvement
Components: Core/Engine
Reporter: sunjincheng
Assignee: sunjincheng
Remove redundant toString() calls,e.g,:
`"Unknown operator: " + operatorType.toString()`-> `Unknown operator: " +
operatorType`
Any calls to toString() used in string concatenations and as arguments to the
print() and println() methods of java.io.PrintWriter and java.io.PrintStream,
the append() method of java.lang.StringBuilder and java.lang.StringBuffer or
the trace(), debug(), info(), warn() and error() methods of org.slf4j.Logger.
In these cases the conversion to string will be handled by the underlying
library methods and an explicit call to toString() is no needed.
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