java.lang.IllegalArgumentException: can not connect() without a document
	at org.eclipse.wst.sse.core.internal.FileBufferModelManager.connect(FileBufferModelManager.java:506)
	at org.eclipse.wst.sse.core.internal.model.ModelManagerImpl._incrCount(ModelManagerImpl.java:666)
	at org.eclipse.wst.sse.core.internal.model.ModelManagerImpl.getExistingModelForRead(ModelManagerImpl.java:1312)
	at org.eclipse.wst.sse.core.internal.model.ModelManagerImpl.getExistingModelForRead(ModelManagerImpl.java:1274)
	at org.jboss.tools.vpe.preview.core.transform.VpvController.getSourceModel(VpvController.java:119)
	at org.jboss.tools.vpe.preview.core.transform.VpvController.getResource(VpvController.java:61)
	at org.jboss.tools.vpe.preview.core.server.VpvSocketProcessor.processRequest(VpvSocketProcessor.java:83)
	at org.jboss.tools.vpe.preview.core.server.VpvSocketProcessor.run(VpvSocketProcessor.java:68)
	at java.lang.Thread.run(Thread.java:745)