NPE in ConnectionWrapper on rollback
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Key: CAY-1043
URL: https://issues.apache.org/cayenne/browse/CAY-1043
Project: Cayenne
Issue Type: Bug
Components: Cayenne Core Library
Affects Versions: 3.0
Reporter: Andrus Adamchik
Assignee: Andrus Adamchik
Priority: Minor
Fix For: 3.0
Just noticed an NPE in Cayenne connection pool, ConnectionWrapper.rollback(),
line 301. It is a result of a failed transaction that blew up inside "commit"
method (most blow up on actual operation, so we rarely if ever see this
condition). "commit" calls "close()" in a finally block, which results in
ConnectionWrapper resetting the internal connection to NULL, causing NPE in a
rollback call downstream... The real problem here of course is that calling
"close" before "rollback" prevents correct state rollback and may result in
unpredictable behavior in those rare situations.
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