public static String[] getParameterTypes(String methodTypeSig) {
		int pos = 1;
		int count = 0;
		while (methodTypeSig.charAt(pos) != ')') {
			pos = skipType(methodTypeSig, pos);
			count++;
		}
		String[] params = new String[count];
		pos = 1;
		for (int i = 0; i < count; i++) {
			int start = pos;
			pos = skipType(methodTypeSig, pos);
			params[i] = methodTypeSig.substring(start, pos);
		}
		return params;
	}