Simon Helsen created JENA-299:
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Summary: LeaveCriticalSection Error
Key: JENA-299
URL: https://issues.apache.org/jira/browse/JENA-299
Project: Apache Jena
Issue Type: Bug
Components: TDB
Affects Versions: TDB 0.9.3, TDB 0.9.4
Environment: windows 64 bit
Reporter: Simon Helsen
Priority: Critical
I have attached a standalone test case, which, when run with the latest
snapshot produces the following exception:
Exception in thread "main" com.hp.hpl.jena.shared.JenaException:
leaveCriticalSection: No lock held (main) Thread R/W: 0/0 :: Model R/W: 0/0
(thread: main)
at
com.hp.hpl.jena.shared.LockMRSW.leaveCriticalSection(LockMRSW.java:175)
at
com.hp.hpl.jena.tdb.transaction.TransactionManager$TSM_WriteBackEndTxn.readerFinishes(TransactionManager.java:210)
at
com.hp.hpl.jena.tdb.transaction.TransactionManager.readerFinishes(TransactionManager.java:723)
at
com.hp.hpl.jena.tdb.transaction.TransactionManager.noteTxnAbort(TransactionManager.java:587)
at
com.hp.hpl.jena.tdb.transaction.TransactionManager.notifyAbort(TransactionManager.java:445)
at
com.hp.hpl.jena.tdb.transaction.Transaction.abort(Transaction.java:162)
at
com.hp.hpl.jena.tdb.transaction.DatasetGraphTxn.abort(DatasetGraphTxn.java:45)
at
com.hp.hpl.jena.tdb.transaction.DatasetGraphTransaction._abort(DatasetGraphTransaction.java:156)
at
com.hp.hpl.jena.tdb.migrate.DatasetGraphTrackActive.abort(DatasetGraphTrackActive.java:68)
at com.hp.hpl.jena.sparql.core.DatasetImpl.abort(DatasetImpl.java:149)
at
com.ibm.jena.test.LeaveCriticalSectionErrorTest.storeOperation(LeaveCriticalSectionErrorTest.java:57)
at
com.ibm.jena.test.LeaveCriticalSectionErrorTest.query1(LeaveCriticalSectionErrorTest.java:105)
at
com.ibm.jena.test.LeaveCriticalSectionErrorTest.main(LeaveCriticalSectionErrorTest.java:156)
The sequence in the test case is to run 2 queries, 1 write and then again 2
queries:
test.query1();
test.query1();
test.write1();
test.query1();
test.query1();
Somehow, the following sequence did not produce the exception:
test.query1();
test.query1();
test.write1();
test.query1();
Note that the test case does not check the correctness of any results.
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