private XtextResource createVirtualXtextResource(URI uri,
			EObject semanticElement) throws IOException {
		IResourceFactory resourceFactory = xtextInjector
				.getInstance(IResourceFactory.class);
		// TODO use the synthetic scheme.
		XtextResourceSet rs = xtextInjector.getInstance(XtextResourceSet.class);
		rs.setClasspathURIContext(getClass());
		// Create virtual resource
		XtextResource xtextVirtualResource = (XtextResource) resourceFactory
				.createResource(URI.createURI(uri.toString()));
		rs.getResources().add(xtextVirtualResource);

		// Populate virtual resource with the given semantic element to edit
		xtextVirtualResource.getContents().add(semanticElement);

		// Save and reparse in order to initialize virtual Xtext resource
		ByteArrayOutputStream out = new ByteArrayOutputStream();
		xtextVirtualResource.save(out, Collections.emptyMap());
		xtextVirtualResource.reparse(new String(out.toByteArray()));

		return xtextVirtualResource;
	}