MethodInfo minfo = new MethodInfo(cp, EACH_WRITE_METHOD_PREFIX
+ finfo.getName(), desc);
/* local variables | target obj | each oldvalue | */
Bytecode code = new Bytecode(cp, 6, 3);
// aload_0
code.addAload(0);
// invokeinterface // enabled.getInterceptFieldCallback()
int enabled_class_index = cp.addClassInfo(FIELD_HANDLED_TYPE_NAME);
code.addInvokeinterface(enabled_class_index,
GETFIELDHANDLER_METHOD_NAME, GETFIELDHANDLER_METHOD_DESCRIPTOR,
1);