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https://issues.apache.org/jira/browse/JENA-250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13290345#comment-13290345
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Simon Helsen commented on JENA-250:
-----------------------------------

when you say dangling queries, is my code not cleaning up properly? 

For the record, I also tested this with non-transactional TDB (i.e. I use 
StoreConnetion.release() to "disconnect" but I don't use transactions anywhere) 
and things are ok in this scenario. I guess this is expected. 


                
> StoreConnection.release will empty repository if last action is not a query
> ---------------------------------------------------------------------------
>
>                 Key: JENA-250
>                 URL: https://issues.apache.org/jira/browse/JENA-250
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: TDB
>    Affects Versions: TDB 0.9.0
>         Environment: Windows
>            Reporter: Simon Helsen
>         Attachments: TestReleaseStore.jar, src.zip
>
>
> Whenever the last activity before releasing a store (with 
> StoreConnection.release) is a write transaction, the entire database is empty 
> the next time you create a dataset. I should note that this only happens when 
> you start with a new index store. If you release the store after a write 
> transaction on a store which was created the first time around where you did 
> not end with a write transaction, the problem will not occur.
> I attached a little test case which illustrates the problem. Just provide a 
> new index location as a java argument (or hard code it)

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