protected Transition createTransition(State from, State to, Node node,
			Map e2t, boolean bool) {
		String read = (String) e2t.get(TRANSITION_READ_NAME);
		String pop = (String) e2t.get(TRANSITION_POP_NAME);
		String push = (String) e2t.get(TRANSITION_PUSH_NAME);
		if (read == null)
			read = ""; // Allow lambda transition.
		if (pop == null)
			pop = ""; // Allow lambda transition.
		if (push == null)
			push = ""; // Allow lambda transition.
		try {
			return new PDATransition(from, to, read, pop, push);
		} catch (IllegalArgumentException e) {
			throw new DataException(e.getMessage());
		}
	}