static O callOpt_uncached(O o) {
  if (o == null) return null;
  return callF(o);
}

static Object callOpt_uncached(Object o, String method, Object... args) {
  try {
    if (o == null) return null;
    if (o instanceof Class) {
      Method m = callOpt_uncached_findStaticMethod((Class) o, method, args, false);
      if (m == null) return null;
      makeAccessible(m);
      return invokeMethod(m, null, args);
    /*} else if (o instanceof DynamicMethods) {
      ret ((DynamicMethods) o)._dynCall(method, args);*/
    } else {
      Method m = callOpt_uncached_findMethod(o, method, args, false);
      if (m == null) return null;
      makeAccessible(m, true);
      return invokeMethod(m, o, args);
    }
  } catch (Exception e) {
    //fail(e.getMessage() + " | Method: " + method + ", receiver: " + className(o) + ", args: (" + join(", ", map(f className, args) + ")");
    throw rethrow(e);
  }
}

static Method callOpt_uncached_findStaticMethod(Class c, String method, Object[] args, boolean debug) {
  Class _c = c;
  while (c != null) {
    for (Method m : c.getDeclaredMethods()) {
      if (debug)
        System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
      if (!m.getName().equals(method)) {
        if (debug) System.out.println("Method name mismatch: " + method);
        continue;
      }

      if ((m.getModifiers() & java.lang.reflect.Modifier.STATIC) == 0 || !callOpt_uncached_checkArgs(m, args, debug))
        continue;

      return m;
    }
    c = c.getSuperclass();
  }
  return null;
}

static Method callOpt_uncached_findMethod(Object o, String method, Object[] args, boolean debug) {
  Class c = o.getClass();
  while (c != null) {
    for (Method m : c.getDeclaredMethods()) {
      if (debug)
        System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
      if (m.getName().equals(method) && callOpt_uncached_checkArgs(m, args, debug))
        return m;
    }
    c = c.getSuperclass();
  }
  return null;
}

private static boolean callOpt_uncached_checkArgs(Method m, Object[] args, boolean debug) {
  Class<?>[] types = m.getParameterTypes();
  if (types.length != args.length) {
    if (debug)
      System.out.println("Bad parameter length: " + args.length + " vs " + types.length);
    return false;
  }
  for (int i = 0; i < types.length; i++)
    if (!(args[i] == null || isInstanceX(types[i], args[i]))) {
      if (debug)
        System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]);
      return false;
    }
  return true;
}

Began life as a copy of #1001199