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Posted to dev@openjpa.apache.org by "Albert Lee (JIRA)" <ji...@apache.org> on 2007/10/03 00:02:52 UTC
[jira] Updated: (OPENJPA-366) InternalException thrown in
BrokerImpl.endOperation
[ https://issues.apache.org/jira/browse/OPENJPA-366?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Albert Lee updated OPENJPA-366:
-------------------------------
Attachment: OPENJPA-366.patch
Add a new message text for InternalException().
This patch is tested against both 1.1.0 trunk and 1.0.x branch.
> InternalException thrown in BrokerImpl.endOperation
> ---------------------------------------------------
>
> Key: OPENJPA-366
> URL: https://issues.apache.org/jira/browse/OPENJPA-366
> Project: OpenJPA
> Issue Type: Bug
> Components: kernel
> Affects Versions: 1.0.0
> Environment: All platforms
> Reporter: Albert Lee
> Assignee: Albert Lee
> Fix For: 1.0.1, 1.1.0
>
> Attachments: OPENJPA-366.patch
>
>
> Under heavy load during stress test, the following exception is observed:
> <openjpa-1.0.0-SNAPSHOT-r420667:570288M fatal general error> org.apache.openjpa.persistence.PersistenceException: null
> at org.apache.openjpa.kernel.BrokerImpl.endOperation(BrokerImpl.java:1728)
> at org.apache.openjpa.kernel.BrokerImpl.isActive(BrokerImpl.java:1676)
> at org.apache.openjpa.kernel.DelegatingBroker.isActive(DelegatingBroker.java:420)
> at org.apache.openjpa.persistence.EntityManagerImpl.isActive(EntityManagerImpl.java:502)
> at org.apache.openjpa.persistence.PersistenceExceptions$2.translate(PersistenceExceptions.java:66)
> at org.apache.openjpa.kernel.DelegatingBroker.translate(DelegatingBroker.java:110)
> at org.apache.openjpa.kernel.DelegatingBroker.newObjectId(DelegatingBroker.java:262)
> at org.apache.openjpa.persistence.EntityManagerImpl.find(EntityManagerImpl.java:347)
> at com.ibm.svt.shoppingcartModule.stationstore.StationStoreSessionBean.getListOrders(StationStoreSessionBean.java:603)
> at com.ibm.svt.shoppingcartModule.stationstore.EJSRemoteStatelessStationStoreSession_5a5c538c.getListOrders(Unknown Source)
> at com.ibm.svt.shoppingcartModule.stationstore._EJSRemoteStatelessStationStoreSession_5a5c538c_Tie.getListOrders(_EJSRemoteStatelessStationStoreSession_5a5c538c_Tie.java:244)
> at com.ibm.svt.shoppingcartModule.stationstore._EJSRemoteStatelessStationStoreSession_5a5c538c_Tie._invoke(_EJSRemoteStatelessStationStoreSession_5a5c538c_Tie.java:100)
> at com.ibm.CORBA.iiop.ServerDelegate.dispatchInvokeHandler(ServerDelegate.java:613)
> at com.ibm.CORBA.iiop.ServerDelegate.dispatch(ServerDelegate.java:466)
> at com.ibm.rmi.iiop.ORB.process(ORB.java:503)
> at com.ibm.CORBA.iiop.ORB.process(ORB.java:1553)
> at com.ibm.rmi.iiop.Connection.respondTo(Connection.java:2680)
> at com.ibm.rmi.iiop.Connection.doWork(Connection.java:2554)
> at com.ibm.rmi.iiop.WorkUnitImpl.doWork(WorkUnitImpl.java:62)
> at com.ibm.ejs.oa.pool.PooledThread.run(ThreadPool.java:118)
> at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1469)
> [8/31/07 22:45:26:265 EDT] 000000c1 SystemOut O MDD Translating exception: <openjpa-0.0.0-r420667:570288 fatal internal error> org.apache.openjpa.util.InternalException: null
> [8/31/07 22:45:26:265 EDT] 000000c1 SystemErr R <openjpa-0.0.0-r420667:570288 fatal internal error> org.apache.openjpa.util.InternalException: null
> [8/31/07 22:45:26:265 EDT] 000000c1 SystemErr R at org.apache.openjpa.kernel.BrokerImpl.endOperation(BrokerImpl.java:1728)
> After some investigation, it was determined that the internal exception is caused by
> if (_operationCount < 1)
> throw new InternalException();
> in BrokerImpl.endOperation();
> We believe the cause of the problem is a lock() method call is missing in the endOperation()
> public boolean endOperation() {
> lock(); <<<<< This is the missing lock() call since BrokerImpl.java was created
> try {
> if (_operationCount == 1 && (_autoDetach & DETACH_NONTXREAD) != 0
> && (_flags & FLAG_ACTIVE) == 0) {
> detachAllInternal(null);
> }
> if (_operationCount < 1)
> throw new InternalException();
> return _operationCount == 1;
> } catch (OpenJPAException ke) {
> throw ke;
> } catch (RuntimeException re) {
> throw new GeneralException(re);
> } finally {
> _operationCount--;
> if (_operationCount == 0)
> _operating.clear();
> unlock();
> }
> }
> Once we have done more tests and verify the fix, I'll submit a patch for this problem.
> If anyone doesn't think this is the solution. please response.
> Albert Lee.
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