/**
* Parses '<T1,T2,...,Tn>'
*
* @return the index of the character next to '>'
*/
private JClass parseArguments(JClass rawType) throws ClassNotFoundException {
if (s.charAt(idx) != '<') throw new IllegalArgumentException();
idx++;
List<JClass> args = new ArrayList<JClass>();
while (true) {
args.add(parseTypeName());
if (idx == s.length()) throw new IllegalArgumentException("Missing '>' in " + s);
char ch = s.charAt(idx);
if (ch == '>') return rawType.narrow(args.toArray(new JClass[args.size()]));
if (ch != ',') throw new IllegalArgumentException(s);
idx++;
}
}
