*** ERROR ***: Mon Mar 09 13:44:51 GMT 2009    java.lang.NullPointerException
    	at org.eclipse.core.internal.filebuffers.ResourceTextFileBuffer.commitFileBufferContent(ResourceTextFileBuffer.java:365)
    	at org.eclipse.core.internal.filebuffers.ResourceFileBuffer.commit(ResourceFileBuffer.java:321)
    	at org.eclipse.wst.sse.core.internal.model.ModelManagerImpl.saveModel(ModelManagerImpl.java:1909)
    	at org.eclipse.wst.sse.core.internal.model.AbstractStructuredModel.save(AbstractStructuredModel.java:1244)
    	at org.eclipse.wst.xml.core.internal.emf2xml.EMF2DOMSSERenderer.doSave(EMF2DOMSSERenderer.java:254)
    	at org.eclipse.wst.common.internal.emf.resource.TranslatorResourceImpl.doSave(TranslatorResourceImpl.java:180)
    	at org.eclipse.wst.common.internal.emf.resource.TranslatorResourceImpl.save(TranslatorResourceImpl.java:160)
    	at org.eclipse.wst.common.internal.emf.resource.ReferencedXMIResourceImpl.saveIfNecessary(ReferencedXMIResourceImpl.java:272)
    	at org.eclipse.jst.j2ee.web.componentcore.util.WebArtifactEdit.addWebAppIfNecessary(WebArtifactEdit.java:449)
    	at org.eclipse.jst.j2ee.web.componentcore.util.WebArtifactEdit.createModelRoot(WebArtifactEdit.java:510)
    	at org.eclipse.jst.j2ee.web.componentcore.util.WebArtifactEdit.createDeploymentDescriptor(WebArtifactEdit.java:655)
    	at org.eclipse.jst.j2ee.web.project.facet.WebFacetInstallDelegate.execute(WebFacetInstallDelegate.java:125)
    	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.callDelegate(FacetedProject.java:1394)
    	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.modifyInternal(FacetedProject.java:401)
    	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.mergeChangesInternal(FacetedProject.java:1134)
    	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.access$2(FacetedProject.java:1070)
    	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject$1.run(FacetedProject.java:309)
    	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)
    	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.modify(FacetedProject.java:319)
    	at org.eclipse.jst.ws.internal.consumption.common.FacetUtils$1.run(FacetUtils.java:778)
    	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)