[ 
https://issues.apache.org/jira/browse/TAJO-1258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14270427#comment-14270427
 ] 

Hudson commented on TAJO-1258:
------------------------------

SUCCESS: Integrated in Tajo-master-build #542 (See 
[https://builds.apache.org/job/Tajo-master-build/542/])
TAJO-1258: Close() for classes derived from FileAppender should be robust. 
(Jongyoung Park via jinho) (jhkim: rev 809cba3758564acd4def17928f95de7b4c913c45)
* 
tajo-storage/tajo-storage-hdfs/src/main/java/org/apache/tajo/storage/parquet/ParquetAppender.java
* 
tajo-storage/tajo-storage-hdfs/src/main/java/org/apache/tajo/storage/text/DelimitedTextFile.java
* CHANGES
* 
tajo-storage/tajo-storage-hdfs/src/main/java/org/apache/tajo/storage/avro/AvroAppender.java
* 
tajo-storage/tajo-storage-hdfs/src/main/java/org/apache/tajo/storage/CSVFile.java
* 
tajo-storage/tajo-storage-hdfs/src/main/java/org/apache/tajo/storage/sequencefile/SequenceFileAppender.java
* 
tajo-storage/tajo-storage-hdfs/src/main/java/org/apache/tajo/storage/RowFile.java


> Close() for classes derived from FileAppender should be robust
> --------------------------------------------------------------
>
>                 Key: TAJO-1258
>                 URL: https://issues.apache.org/jira/browse/TAJO-1258
>             Project: Tajo
>          Issue Type: Improvement
>          Components: storage
>    Affects Versions: 0.9.0
>            Reporter: Jongyoung Park
>            Assignee: Jongyoung Park
>             Fix For: 0.10
>
>
> As I investigated, many appenders have possibility to cause NPE such as 
> TAJO-1227.
> It seems checking null for each variables is ineffective.



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