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https://issues.apache.org/jira/browse/DERBY-3304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12561582#action_12561582
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Mamta A. Satoor commented on DERBY-3304:
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Sorry for misinterpreting your comment, Dag. You are right, in this specific 
test case, where there is a commit inside the java stored procedure, close is 
getting called on CallStatementResultSet which is just getting opened. I think 
work on DERBY-3037 will help resolve this issue too. In DERBY-3037, we have an 
example of Java Stored routine which is a function, which also does a commit 
inside it. And that commit causes the resultset that will be returned by the 
function to close.  I am hoping to get some pointers on how to recognize which 
resultsets should be closed and which should be left often.

> Explicit commit inside a java procedure makes a dynamic result sets passed 
> out unavailable
> ------------------------------------------------------------------------------------------
>
>                 Key: DERBY-3304
>                 URL: https://issues.apache.org/jira/browse/DERBY-3304
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 10.4.0.0
>            Reporter: Daniel John Debrunner
>         Attachments: Main.java
>
>
> Repro (Main.java) that shows changed behavior after svn 602991
> (the patch committed for this issue). It seems a regression: (originally from 
> Dag H. Wanvik attached to DERBY-1585)
> An explicit commit inside a stored procedure makes a dynamic result sets 
> passed out unavailable, even if the commit is executed *prior* to the result 
> set; as in the repro.

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