Bugzilla – Full Text Bug Listing
| Summary: | Intermittent issue in DescriptorQueryManagerMultithreadedTest$DescriptorQueryManagerAddQueryTest | ||||||
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| Product: | z_Archived | Reporter: | Andrei Ilitchev <andrei.ilitchev> | ||||
| Component: | Eclipselink | Assignee: | Nobody - feel free to take it <nobody> | ||||
| Status: | CLOSED FIXED | QA Contact: | |||||
| Severity: | normal | ||||||
| Priority: | P3 | ||||||
| Version: | unspecified | ||||||
| Target Milestone: | --- | ||||||
| Hardware: | PC | ||||||
| OS: | Windows XP | ||||||
| Whiteboard: | |||||||
| Attachments: |
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Created attachment 174627 [details]
the patch
Fixed in bot trunk and 2.1.1 The Eclipselink project has moved to Github: https://github.com/eclipse-ee4j/eclipselink The Eclipselink project has moved to Github: https://github.com/eclipse-ee4j/eclipselink |
DescriptorQueryManagerMultithreadedTest$DescriptorQueryManagerAddQueryTest Exception Description: Fatal error occurred. Internal Exception: java.util.NoSuchElementException Local Exception Stack: Exception [EclipseLink-0] (Eclipse Persistence Services - 2.1.1.v20100717-r7852): org.eclipse.persistence.testing.framework.TestErrorException Exception Description: Fatal error occurred. Internal Exception: java.util.NoSuchElementException at org.eclipse.persistence.testing.framework.TestCase.execute(TestCase.java:164) at org.eclipse.persistence.testing.framework.TestCase.runBare(TestCase.java:263) at org.eclipse.persistence.testing.framework.TestExecutor.execute(TestExecutor.java:248) at org.eclipse.persistence.testing.tests.simultaneous.TestExecutorWithClientSession.runTest(TestExecutorWithClientSession.java:153) at org.eclipse.persistence.testing.framework.ui.SynchronizedTestExecutor.run(SynchronizedTestExecutor.java:61) Caused by: java.util.NoSuchElementException at org.eclipse.persistence.internal.helper.NonSynchronizedVector.firstElement(NonSynchronizedVector.java:172) at org.eclipse.persistence.descriptors.DescriptorQueryManager.getLocalQuery(DescriptorQueryManager.java:535) at org.eclipse.persistence.descriptors.DescriptorQueryManager.getQuery(DescriptorQueryManager.java:499) at org.eclipse.persistence.descriptors.DescriptorQueryManager.getQuery(DescriptorQueryManager.java:484) at org.eclipse.persistence.testing.tests.simultaneous.DescriptorQueryManagerMultithreadedTest$DescriptorQueryManagerAddQueryTest.verify(DescriptorQueryManagerMultithreadedTest.java:70) at org.eclipse.persistence.testing.framework.TestCase.execute(TestCase.java:155) This happens when a very narrow window is hit: in DescriptorQueryManager.addQuery method one thread has already removed the ith query but hasn't yet added the new one; another thread at this moment in DescriptorQueryManager.getLocalQuery() has verified that queries.size()==1 (before the first thread has removed the query); then the next statement queries.firstElement() throws exception - because the first thread has removed the only element there was. The fix is simple: in DescriptorQueryManager.addQuery instead of: queriesByName.remove(i); queriesByName.add(i, query); use: queriesByName.set(i, query);