!ENTRY org.eclipse.core.jobs 4 2 2012-03-07 09:56:26.722
!MESSAGE An internal error occurred during: "JBoss Tools Model Update".
!STACK 0
java.lang.NullPointerException
	at org.jboss.tools.common.model.impl.XModelObjectImpl.getChildByPath(XModelObjectImpl.java:331)
	at org.jboss.tools.common.model.filesystems.impl.Libs.updateFileSystems(Libs.java:164)
	at org.jboss.tools.common.model.filesystems.impl.Libs.update(Libs.java:91)
	at org.jboss.tools.common.model.project.ext.AbstractClassPathMonitor.update(AbstractClassPathMonitor.java:63)
	at org.jboss.tools.jst.web.kb.internal.scanner.ClassPathMonitor$1.run(ClassPathMonitor.java:186)
	at org.jboss.tools.common.model.XJob.runInWorkspace(XJob.java:178)
	at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)