*/
private void addMethod(String[] tokens) throws ParseException {
// 0 METHOD, 1 index, 2 class, 3 method, 4 signature 5 END
if (tokens.length != 6) {
throw new ParseException("error in format of method key : " + tokens);
}
methodKeys.add(Integer.parseInt(tokens[1]), new MethodKey(tokens[2], tokens[3], tokens[4]));
}