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https://issues.apache.org/jira/browse/TAJO-1699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14648892#comment-14648892
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ASF GitHub Bot commented on TAJO-1699:
--------------------------------------

Github user jihoonson commented on a diff in the pull request:

    https://github.com/apache/tajo/pull/662#discussion_r35953155
  
    --- Diff: 
tajo-common/src/main/java/org/apache/tajo/exception/ExceptionUtil.java ---
    @@ -21,6 +21,11 @@
     import org.apache.commons.logging.Log;
     import org.apache.hadoop.util.StringUtils;
     import org.apache.tajo.common.TajoDataTypes.DataType;
    +import org.apache.tajo.rpc.protocolrecords.PrimitiveProtos;
    --- End diff --
    
    Please remove unused imports.


> Tajo Java Client version 2
> --------------------------
>
>                 Key: TAJO-1699
>                 URL: https://issues.apache.org/jira/browse/TAJO-1699
>             Project: Tajo
>          Issue Type: Improvement
>          Components: Java Client
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>             Fix For: 0.11.0
>
>
> I propose Tajo Java Client version 2. Its motivations are as follows:
>  * After TAJO-1625, the error propagation has been changed significantly. 
> Java Client should make use the new error propagation system. Java Client 
> should throw the proper exceptions.
>  * Many Java API exposes internal data structure and protocol buffer data 
> structure. It requires users to understand its internal behavior and 
> architecture. We should hide them from users.



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