Dongkyu Hwangbo created TAJO-1892:
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Summary: Remove '_' as an identifier
Key: TAJO-1892
URL: https://issues.apache.org/jira/browse/TAJO-1892
Project: Tajo
Issue Type: Improvement
Reporter: Dongkyu Hwangbo
Assignee: Dongkyu Hwangbo
Priority: Trivial
See this page.
(https://bugs.openjdk.java.net/browse/JDK-8065599)
Use of '_' as an identifier might not be supported in releases after java se 8.
so, we must check code in whole project.
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