TypeToString converter = new TypeToString();
MethodSignatureUtil util = new MethodSignatureUtil();
util.setClassName(class_name);
util.setMethodName(method_name);
util.setReturnType(converter.convert(return_type));
List<String> parameter_types = new ArrayList<String>();
for(Type arg_type : arg_types){
parameter_types.add(converter.convert(arg_type));
}
util.setParameterTypes(parameter_types);