return HistoryWorkingSetUpdater.ID.equals(id) || OthersWorkingSetUpdater.ID.equals(id) ||
return OthersWorkingSetUpdater.ID.equals(id) ||
	private boolean isKnownWorkingSet(IWorkingSet set) {		String id= set.getId();		return HistoryWorkingSetUpdater.ID.equals(id) ||			OthersWorkingSetUpdater.ID.equals(id) ||			JavaWorkingSetUpdater.ID.equals(id);	}