java.lang.NullPointerException
	at org.jboss.tools.vpe.editor.VpeController$ActiveEditorSwitcher.access$4(VpeController.java:1556)
	at org.jboss.tools.vpe.editor.VpeController.processPostModelEvent(VpeController.java:906)
	at org.eclipse.wst.sse.core.internal.model.LifecycleNotificationManager.signalLifecycleEvent(LifecycleNotificationManager.java:114)
	at org.eclipse.wst.sse.core.internal.model.AbstractStructuredModel.signalLifecycleEvent(AbstractStructuredModel.java:1549)
	at org.eclipse.wst.sse.core.internal.model.AbstractStructuredModel.signalPostLifeCycleListenerRelease(AbstractStructuredModel.java:1556)
	at org.eclipse.wst.sse.core.internal.model.AbstractStructuredModel.releaseFromRead(AbstractStructuredModel.java:1079)
	at org.eclipse.wst.xml.core.internal.document.DOMModelImpl.releaseFromRead(DOMModelImpl.java:814)
	at org.eclipse.wst.html.core.internal.document.DOMStyleModelImpl.releaseFromRead(DOMStyleModelImpl.java:44)
	at org.eclipse.wst.html.internal.validation.HTMLValidator.releaseModel(HTMLValidator.java:226)
	at org.eclipse.wst.html.internal.validation.HTMLValidator.validateFile(HTMLValidator.java:497)
	at org.eclipse.wst.html.internal.validation.HTMLValidator.validateDelta(HTMLValidator.java:476)
	at org.eclipse.wst.html.internal.validation.HTMLValidator.validate(HTMLValidator.java:239)
	at org.eclipse.wst.sse.ui.internal.reconcile.validator.ReconcileStepForValidator.validate(ReconcileStepForValidator.java:292)
	at org.eclipse.wst.sse.ui.internal.reconcile.validator.ReconcileStepForValidator.reconcileModel(ReconcileStepForValidator.java:258)
	at org.eclipse.jface.text.reconciler.AbstractReconcileStep.reconcile(AbstractReconcileStep.java:95)
	at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorStrategy.reconcile(ValidatorStrategy.java:257)
	at org.eclipse.wst.sse.ui.internal.reconcile.DocumentRegionProcessor.process(DocumentRegionProcessor.java:199)
	at org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor.process(StructuredRegionProcessor.java:221)
	at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor.run(DirtyRegionProcessor.java:641)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)