[
https://issues.apache.org/jira/browse/JENA-299?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13438045#comment-13438045
]
Simon Helsen commented on JENA-299:
-----------------------------------
The issue I reported in this defect is gone. However, I am still observing
another problem. Whenever I start the product all appears fine, but when I shut
it down and then start again, I run into the following exception (i.e. some
sort of corruption). I'll try to produce an independent test case. Perhaps
there is a relation to JENA-301 as well?
13:44:31,484 [1311264296@qtp-145033381-5] ERROR com.ibm.team.jfs
- @ID@E An unexpected problem occurred while processing a
transactional model read activity
java.lang.UnsupportedOperationException: Quad: predicate cannot be null
at com.hp.hpl.jena.sparql.core.Quad.<init>(Quad.java:61)
at com.hp.hpl.jena.tdb.lib.TupleLib.quad(TupleLib.java:162)
at com.hp.hpl.jena.tdb.lib.TupleLib.quad(TupleLib.java:153)
at com.hp.hpl.jena.tdb.lib.TupleLib.access$100(TupleLib.java:45)
at com.hp.hpl.jena.tdb.lib.TupleLib$4.convert(TupleLib.java:87)
at com.hp.hpl.jena.tdb.lib.TupleLib$4.convert(TupleLib.java:83)
at org.openjena.atlas.iterator.Iter$4.next(Iter.java:301)
at
com.hp.hpl.jena.tdb.store.GraphTDBBase$ProjectQuadsToTriples.next(GraphTDBBase.java:178)
at
com.hp.hpl.jena.tdb.store.GraphTDBBase$ProjectQuadsToTriples.next(GraphTDBBase.java:166)
at
com.hp.hpl.jena.util.iterator.WrappedIterator.next(WrappedIterator.java:80)
at com.hp.hpl.jena.util.iterator.Map1Iterator.next(Map1Iterator.java:47)
at
com.hp.hpl.jena.util.iterator.WrappedIterator.next(WrappedIterator.java:80)
at
com.hp.hpl.jena.rdf.model.impl.StmtIteratorImpl.next(StmtIteratorImpl.java:45)
at
com.hp.hpl.jena.rdf.model.impl.StmtIteratorImpl.next(StmtIteratorImpl.java:33)
at
com.ibm.team.jfs.rdf.internal.jena.tdb.JenaTxTdbProvider$7.run(JenaTxTdbProvider.java:950)
at
com.ibm.team.jfs.rdf.internal.jena.tdb.JenaTxTdbProvider$7.run(JenaTxTdbProvider.java:1)
at
com.ibm.team.jfs.rdf.internal.jena.tdb.JenaTxTdbProvider.storeOperation(JenaTxTdbProvider.java:208)
at
com.ibm.team.jfs.rdf.internal.jena.tdb.JenaTxTdbProvider.readAndSetCurrentIndexSize(JenaTxTdbProvider.java:941)
at
com.ibm.team.jfs.rdf.internal.jena.tdb.JenaTxTdbProvider.connect(JenaTxTdbProvider.java:488)
at
com.ibm.team.jfs.rdf.internal.jena.JenaRdfService.connect(JenaRdfService.java:284)
> LeaveCriticalSection Error
> --------------------------
>
> Key: JENA-299
> URL: https://issues.apache.org/jira/browse/JENA-299
> Project: Apache Jena
> Issue Type: Bug
> Components: TDB
> Affects Versions: TDB 0.9.4
> Environment: windows 64 bit
> Reporter: Simon Helsen
> Assignee: Andy Seaborne
> Priority: Critical
> Fix For: TDB 0.9.4
>
> Attachments: LeaveCriticalSectionTestCase.zip
>
>
> I have attached a standalone test case, which, when run with the latest
> snapshot produces the following exception:
> Exception in thread "main" com.hp.hpl.jena.shared.JenaException:
> leaveCriticalSection: No lock held (main) Thread R/W: 0/0 :: Model R/W: 0/0
> (thread: main)
> at
> com.hp.hpl.jena.shared.LockMRSW.leaveCriticalSection(LockMRSW.java:175)
> at
> com.hp.hpl.jena.tdb.transaction.TransactionManager$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.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
