java.lang.NullPointerException
	at org.eclipse.jst.jsf.common.metadata.internal.DomainLoadingStrategy.removeOldLocatorObservers(DomainLoadingStrategy.java:170)
	at org.eclipse.jst.jsf.common.metadata.internal.DomainLoadingStrategy.cleanup(DomainLoadingStrategy.java:159)
	at org.eclipse.jst.jsf.common.metadata.internal.MetaDataModel.cleanup(MetaDataModel.java:111)
	at org.eclipse.jst.jsf.common.metadata.internal.MetaDataModelManager$1.run(MetaDataModelManager.java:182)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
	at org.eclipse.core.runtime.Platform.run(Platform.java:857)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:46)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:199)
	at org.eclipse.jst.jsf.common.metadata.internal.MetaDataModelManager.resourceChanged(MetaDataModelManager.java:171)
	at org.eclipse.core.internal.events.NotificationManager$2.run(NotificationManager.java:282)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
	at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:276)
	at org.eclipse.core.internal.events.NotificationManager.handleEvent(NotificationManager.java:248)
	at org.eclipse.core.internal.resources.Workspace.broadcastEvent(Workspace.java:305)
	at org.eclipse.core.internal.resources.Project.close(Project.java:138)
	at org.eclipse.ui.actions.CloseResourceAction.invokeOperation(CloseResourceAction.java:184)
	at org.eclipse.ui.actions.WorkspaceAction.execute(WorkspaceAction.java:141)
	at org.eclipse.ui.actions.WorkspaceAction$1.runInWorkspace(WorkspaceAction.java:460)
	at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)