I have hit an unusual EmptyStackException in TuscanyXMLStreamReader. I
am having problems debugging the issue since any actions I take to
gather further information seems to resolve the problem (connecting a
debugger, attempting to produce more detailed logs from execution).
The following is the relevant stack trace I am hitting. My guess,
since I can't reliably recreate the problem, is that there is a timing
issue with multiple threads using the same stack, but can't seem to
verify it. Does anyone familiar with the code have some thoughts?
Kapish Aggarwal
java.util.EmptyStackException
at java.util.Stack.pop(Stack.java:80)
at
org.apache.tuscany.sca.contribution.processor.TuscanyXMLStreamReader.popContext(TuscanyXMLStreamReader.java:73)
at
org.apache.tuscany.sca.contribution.processor.TuscanyXMLStreamReader.next(TuscanyXMLStreamReader.java:85)
at
org.apache.tuscany.sca.contribution.processor.ValidatingXMLStreamReader.next(ValidatingXMLStreamReader.java:148)
at
org.apache.tuscany.sca.assembly.xml.CompositeProcessor.read(CompositeProcessor.java:598)
at
org.apache.tuscany.sca.assembly.xml.CompositeProcessor.read(CompositeProcessor.java:91)
at
org.apache.tuscany.sca.contribution.processor.DefaultStAXArtifactProcessorExtensionPoint$LazyStAXArtifactProcessor.read(DefaultStAXArtifactProcessorExtensionPoint.java:360)
at
org.apache.tuscany.sca.contribution.processor.ExtensibleStAXArtifactProcessor.read(ExtensibleStAXArtifactProcessor.java:152)
at
org.apache.tuscany.sca.assembly.xml.CompositeDocumentProcessor.read(CompositeDocumentProcessor.java:151)
at
org.apache.tuscany.sca.assembly.xml.CompositeDocumentProcessor.read(CompositeDocumentProcessor.java:118)
at
org.apache.tuscany.sca.assembly.xml.CompositeDocumentProcessor.read(CompositeDocumentProcessor.java:57)
at
org.apache.tuscany.sca.contribution.processor.ExtensibleURLArtifactProcessor.read(ExtensibleURLArtifactProcessor.java:96)
at
org.apache.tuscany.sca.contribution.service.impl.ContributionServiceImpl.processReadPhase(ContributionServiceImpl.java:536)
at
org.apache.tuscany.sca.contribution.service.impl.ContributionServiceImpl.addContribution(ContributionServiceImpl.java:387)
at
org.apache.tuscany.sca.contribution.service.impl.ContributionServiceImpl.contribute(ContributionServiceImpl.java:189)
