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From "Matthew Pitts (JIRA)" <>
Subject [jira] [Created] (ARIES-1438) NPE in XAJpaTemplate#txExpr if Coordinator is null
Date Tue, 27 Oct 2015 12:05:27 GMT
Matthew Pitts created ARIES-1438:

             Summary: NPE in XAJpaTemplate#txExpr if Coordinator is null
                 Key: ARIES-1438
             Project: Aries
          Issue Type: Bug
          Components: JPA
    Affects Versions: jpa-2.2.0
            Reporter: Matthew Pitts

XAJpaTemplate uses the following code to initialize the transaction and later calls Coordinator#end
in a finally block.

TransactionAttribute ta = TransactionAttribute.fromType(type);
Coordination coord = null;
try {
    tranToken = ta.begin(tm);
    coord = coordinator.begin(this.getClass().getName(), 0);

However, if the call to {code}ta.begin(tm){code} fails, then the {i}coord{i} reference will
be null, thus provoking an NPE during the finally block. This will then suppress the original

A null-check on {i}coord{i} prior to the invocation of Coordinator#end should suffix to fix
this, but perhaps there's another problem here.

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