[jbosstools-issues] [JBoss JIRA] (JBIDE-11424) ConcurrentModificationException in Error Log after creating JSF2 Kickstart Project

[Viacheslav Kabanovich (JIRA)]

    [ https://issues.jboss.org/browse/JBIDE-11424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12709301#comment-12709301 ] 

Viacheslav Kabanovich commented on JBIDE-11424:
-----------------------------------------------

Issue https://bugs.eclipse.org/bugs/show_bug.cgi?id=386452 is created.
Class CMNamedNodeMapForBuddySystem iterates on a thread unsafe iterator without synchronization block.

I still cannot find a way to reproduce the exception. Instances of CMNamedNodeMap are created just a few times for the Eclipse session as well as method CMNamedNodeMapForBuddySystem.makeBuddySystem is called just a few times, and it is of very low probability that the same instance will be accessed from two threads, I cannot make it happen even in debugger.
                
> ConcurrentModificationException in Error Log after creating JSF2 Kickstart Project
> ----------------------------------------------------------------------------------
>
>                 Key: JBIDE-11424
>                 URL: https://issues.jboss.org/browse/JBIDE-11424
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: JSF, UpStream
>    Affects Versions: 3.3.0.Beta2
>         Environment: JBDS5Beta2 #115, L64
>            Reporter: Jiri Peterka
>            Assignee: Viacheslav Kabanovich
>             Fix For: 3.4.0.M1
>
>
> java.util.ConcurrentModificationException
> 	at java.util.Hashtable$Enumerator.next(Hashtable.java:1031)
> 	at org.eclipse.wst.html.core.internal.modelquery.CMNamedNodeMapForBuddySystem.makeBuddySystem(CMNamedNodeMapForBuddySystem.java:100)
> 	at org.eclipse.wst.html.core.internal.modelquery.CMDocumentForBuddySystem$Elements.<init>(CMDocumentForBuddySystem.java:36)
> 	at org.eclipse.wst.html.core.internal.modelquery.CMDocumentForBuddySystem.getElements(CMDocumentForBuddySystem.java:90)
> 	at org.eclipse.wst.xml.core.internal.contentmodel.modelqueryimpl.SimpleAssociationProvider.getCMElementDeclaration(SimpleAssociationProvider.java:45)
> 	at org.eclipse.wst.xml.core.internal.contentmodel.modelqueryimpl.ModelQueryImpl.getCMElementDeclaration(ModelQueryImpl.java:116)
> 	at org.eclipse.wst.html.core.internal.modelquery.HTMLModelQueryImpl.getCMElementDeclaration(HTMLModelQueryImpl.java:152)
> 	at org.eclipse.wst.xml.core.internal.document.ElementImpl.getDeclaration(ElementImpl.java:369)
> 	at org.eclipse.wst.xml.core.internal.document.CMNodeUtil.getElementDeclaration(CMNodeUtil.java:40)
> 	at org.eclipse.wst.html.core.internal.document.HTMLModelParserAdapter.canContain(HTMLModelParserAdapter.java:86)
> 	at org.eclipse.wst.xml.core.internal.document.XMLModelParser.insertNode(XMLModelParser.java:1327)
> 	at org.eclipse.wst.xml.core.internal.document.XMLModelParser.insertStartTag(XMLModelParser.java:1402)
> 	at org.eclipse.wst.xml.core.internal.document.XMLModelParser.insertStartTag(XMLModelParser.java:1499)
> 	at org.eclipse.wst.xml.core.internal.document.XMLModelParser.insertStructuredDocumentRegion(XMLModelParser.java:1510)
> 	at org.eclipse.wst.xml.core.internal.document.XMLModelParser.replaceStructuredDocumentRegions(XMLModelParser.java:2354)
> 	at org.eclipse.wst.xml.core.internal.document.DOMModelImpl.internalSetNewDocument(DOMModelImpl.java:661)
> 	at org.eclipse.wst.xml.core.internal.document.DOMModelImpl.setStructuredDocument(DOMModelImpl.java:936)
> 	at org.eclipse.wst.sse.core.internal.model.AbstractModelLoader.createModel(AbstractModelLoader.java:127)
> 	at org.eclipse.wst.sse.core.internal.FileBufferModelManager.getModel(FileBufferModelManager.java:725)
> 	at org.eclipse.wst.sse.core.internal.FileBufferModelManager.getModel(FileBufferModelManager.java:685)
> 	at org.eclipse.wst.sse.core.internal.model.ModelManagerImpl._doCommonGetModel(ModelManagerImpl.java:544)
> 	at org.eclipse.wst.sse.core.internal.model.ModelManagerImpl._commonGetModel(ModelManagerImpl.java:508)
> 	at org.eclipse.wst.sse.core.internal.model.ModelManagerImpl._commonGetModel(ModelManagerImpl.java:481)
> 	at org.eclipse.wst.sse.core.internal.model.ModelManagerImpl.getModelForRead(ModelManagerImpl.java:1419)
> 	at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:379)
> 	at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:222)
> 	at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:211)
> 	at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:200)
> 	at org.jboss.tools.jsf.web.validation.composite.CompositeComponentValidator.validateResource(CompositeComponentValidator.java:188)
> 	at org.jboss.tools.jsf.web.validation.composite.CompositeComponentValidator.validateAll(CompositeComponentValidator.java:167)
> 	at org.jboss.tools.common.validation.ValidatorManager.validateAll(ValidatorManager.java:132)
> 	at org.jboss.tools.common.validation.ValidatorManager.validateInJob(ValidatorManager.java:84)
> 	at org.eclipse.wst.validation.internal.operations.ValidatorJob.run(ValidatorJob.java:78)
> 	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

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