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https://issues.apache.org/jira/browse/ARIES-1438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14976302#comment-14976302
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Christian Schneider commented on ARIES-1438:
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Sounds like a valid bug. Do you want to supply a patch or should I just fix it?
> NPE in XAJpaTemplate#txExpr if Coordinator is null
> --------------------------------------------------
>
> Key: ARIES-1438
> URL: https://issues.apache.org/jira/browse/ARIES-1438
> Project: Aries
> Issue Type: Bug
> Components: JPA
> Affects Versions: jpa-2.2.0
> Reporter: Matthew Pitts
> Fix For: jpa-2.3.0
>
>
> XAJpaTemplate uses the following code to initialize the transaction and later
> calls Coordinator#end in a finally block.
> {code:java}
> TransactionAttribute ta = TransactionAttribute.fromType(type);
> Coordination coord = null;
> try {
> tranToken = ta.begin(tm);
> coord = coordinator.begin(this.getClass().getName(), 0);
> {code}
> However, if the call to _ta.begin(tm)_ fails, then the _coord_ reference will
> be null, thus provoking an NPE during the finally block. This will then
> suppress the original exception that prevented _ta.begin_ from succeeding.
> A null-check on _coord_ prior to the invocation of Coordinator#end should
> suffice to fix this, but perhaps there's another problem here.
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