Bug 303831 Warnings logged when trying to merge changes to an MPart's 'closeable' attribute
Warnings are printed out to syserr. --- WARNING: Unknown feature found, reconciliation may fail: Part#closeable
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/workbench/ui/internal/XMLModelReconciler.java
};
		changeDescription = null;
	}
	static List<Object> getReferences(Object object) {
		Iterator<EObject> it = ((EObject) object).eAllContents();
		List<Object> references = new LinkedList<Object>();
		while (it.hasNext()) {
			Object reference = it.next();
			references.add(reference);
		}
		return references;
	}
	public Collection<ModelDelta> constructDeltas(Object object, Object serializedState) {
		rootObject = (EObject) object;
		List<Object> references = getReferences(rootObject);
		Document document = (Document) serializedState;
		Collection<ModelDelta> deltas = new LinkedList<ModelDelta>();
		NodeList rootNodeList = (NodeList) document.getDocumentElement();
		for (int i = 0; i < rootNodeList.getLength(); i++) {
			Node node = rootNodeList.item(i);
			if (node instanceof Element) {
				Element element = (Element) node;
				constructDeltas(deltas, references, rootObject, element, element
						.getAttribute(APPLICATIONELEMENT_ID_ATTNAME));
			}
		}
		return deltas;
	}
	private static EStructuralFeature getStructuralFeature(EObject object, String featureName) {
		if (featureName.equals(APPLICATIONELEMENT_ID_ATTNAME)) {