[jbosstools-issues] [JBoss JIRA] (JBIDE-15321) ConcurrentModificationException in KbBuilder

[Vlado Pakan (JIRA)]

     [ https://issues.jboss.org/browse/JBIDE-15321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vlado Pakan closed JBIDE-15321.
-------------------------------



Verified in source code for both fix versions
                
> ConcurrentModificationException in KbBuilder
> --------------------------------------------
>
>                 Key: JBIDE-15321
>                 URL: https://issues.jboss.org/browse/JBIDE-15321
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: common/jst/core
>    Affects Versions: 4.1.0.Final
>         Environment: eclipse.buildId=4.3.0.I20130605-2000
> java.version=1.7.0_21
> java.vendor=Oracle Corporation
> BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
> Framework arguments:  -product org.eclipse.epp.package.jee.product
> Command-line arguments:  -os linux -ws gtk -arch x86_64 -product org.eclipse.epp.package.jee.product
>            Reporter: George Gastaldi
>            Assignee: Denis Golovin
>            Priority: Critical
>             Fix For: 4.1.1.Alpha1, 4.2.0.Alpha1
>
>
> The following exception happens sporadically when Eclipse is building projects in background (each panel is a log entry in the Error log panel): 
> {code}
> Errors running builder 'JBoss Knowledge Base Builder' on project 'ui-tests'.
> java.util.ConcurrentModificationException
> 	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:894)
> 	at java.util.HashMap$KeyIterator.next(HashMap.java:928)
> 	at java.util.AbstractCollection.addAll(AbstractCollection.java:333)
> 	at org.jboss.tools.jst.web.kb.internal.scanner.ClassPathMonitor.hasToUpdateProjectDependencies(ClassPathMonitor.java:173)
> 	at org.jboss.tools.jst.web.kb.internal.scanner.ClassPathMonitor.build(ClassPathMonitor.java:214)
> 	at org.jboss.tools.jst.web.kb.internal.KbBuilder.build(KbBuilder.java:102)
> 	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:726)
> 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199)
> 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:239)
> 	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:292)
> 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:295)
> 	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:351)
> 	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:374)
> 	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143)
> 	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241)
> 	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
> {code}
> and:
> {code}
> Errors running builder 'JBoss Knowledge Base Builder' on project 'maven'.
> java.util.ConcurrentModificationException
> 	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:894)
> 	at java.util.HashMap$KeyIterator.next(HashMap.java:928)
> 	at java.util.AbstractCollection.addAll(AbstractCollection.java:333)
> 	at org.jboss.tools.jst.web.kb.internal.scanner.ClassPathMonitor.hasToUpdateProjectDependencies(ClassPathMonitor.java:173)
> 	at org.jboss.tools.jst.web.kb.internal.scanner.ClassPathMonitor.build(ClassPathMonitor.java:214)
> 	at org.jboss.tools.jst.web.kb.internal.KbBuilder.build(KbBuilder.java:102)
> 	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:726)
> 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199)
> 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:239)
> 	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:292)
> 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:295)
> 	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:351)
> 	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:374)
> 	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143)
> 	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241)
> 	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
> {code}
> {code}
> Problems occurred when invoking code from plug-in: "org.eclipse.core.resources".
> java.util.ConcurrentModificationException
> 	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:894)
> 	at java.util.HashMap$KeyIterator.next(HashMap.java:928)
> 	at java.util.AbstractCollection.addAll(AbstractCollection.java:333)
> 	at org.jboss.tools.jst.web.kb.internal.scanner.ClassPathMonitor.hasToUpdateProjectDependencies(ClassPathMonitor.java:173)
> 	at org.jboss.tools.jst.web.kb.internal.scanner.ClassPathMonitor.build(ClassPathMonitor.java:214)
> 	at org.jboss.tools.jst.web.kb.internal.KbBuilder.build(KbBuilder.java:102)
> 	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:726)
> 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199)
> 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:239)
> 	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:292)
> 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:295)
> 	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:351)
> 	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:374)
> 	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143)
> 	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241)
> 	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
> {code}

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