We see this all the time and it's killing us. Here's the threadDump of the executor that's hung. Let me know if you need the whole dump:

Executor #-1 for master : executing driver-smoketest.linux #1235

"Executor #-1 for master : executing driver-smoketest.linux #1235" Id=374602 Group=main BLOCKED on winstone.classLoader.WebappClassLoader@77ce3fc5 owned by "pool-3-thread-1820" Id=406115
	at winstone.classLoader.WebappClassLoader.loadClass(WebappClassLoader.java:48)
	-  blocked on winstone.classLoader.WebappClassLoader@77ce3fc5
	at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
	at javax.xml.parsers.FactoryFinder.getProviderClass(FactoryFinder.java:109)
	at javax.xml.parsers.FactoryFinder.newInstance(FactoryFinder.java:144)
	at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:231)
	at javax.xml.parsers.SAXParserFactory.newInstance(SAXParserFactory.java:125)
	at org.apache.commons.digester.Digester.getFactory(Digester.java:490)
	at org.apache.commons.digester.Digester.getParser(Digester.java:693)
	at org.apache.commons.digester.Digester.getXMLReader(Digester.java:899)
	at org.apache.commons.digester.Digester.parse(Digester.java:1631)
	at hudson.plugins.mercurial.MercurialChangeLogParser.parse(MercurialChangeLogParser.java:49)
	at hudson.plugins.mercurial.MercurialChangeLogParser.parse(MercurialChangeLogParser.java:24)
	at hudson.model.AbstractBuild.calcChangeSet(AbstractBuild.java:832)
	at hudson.model.AbstractBuild.getChangeSet(AbstractBuild.java:806)
	at hudson.model.AbstractBuild.hasParticipant(AbstractBuild.java:358)
	at hudson.model.AbstractProject.hasParticipant(AbstractProject.java:1419)
	at hudson.model.User.getProjects(User.java:409)
	at hudson.scm.MailAddressResolverImpl.findMailAddressFor(MailAddressResolverImpl.java:21)
	at hudson.tasks.MailAddressResolver.resolve(MailAddressResolver.java:100)
	at hudson.tasks.Mailer$UserProperty.getAddress(Mailer.java:530)
	at hudson.plugins.emailext.ExtendedEmailPublisher.createMail(ExtendedEmailPublisher.java:396)
	at hudson.plugins.emailext.ExtendedEmailPublisher.sendMail(ExtendedEmailPublisher.java:273)
	at hudson.plugins.emailext.ExtendedEmailPublisher._perform(ExtendedEmailPublisher.java:265)
	at hudson.plugins.emailext.ExtendedEmailPublisher.access$100(ExtendedEmailPublisher.java:69)
	at hudson.plugins.emailext.ExtendedEmailPublisher$1.endBuild(ExtendedEmailPublisher.java:600)
	at hudson.matrix.MatrixBuild$MatrixBuildExecution.post2(MatrixBuild.java:381)
	at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:639)
	at hudson.model.Run.execute(Run.java:1513)
	at hudson.matrix.MatrixBuild.run(MatrixBuild.java:287)
	at hudson.model.ResourceController.execute(ResourceController.java:88)
	at hudson.model.Executor.run(Executor.java:236)
	at hudson.model.OneOffExecutor.run(OneOffExecutor.java:66)
Change By: Robert Cronk (28/Jun/12 10:40 PM)
Resolution: Fixed

        
Status: Closed Reopened
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