sbool canCallWithVarargs(O o, S method, O... args) {
  if (o == null) false;
  
  if (o instanceof Class) {
    Class c = (Class) o;
    _MethodCache cache = callOpt_getCache(c);
    
    if (cache.findStaticMethod(method, args) != null) true;

    // try varargs
    L<Method> methods = cache.cache.get(method);
    if (methods != null) methodSearch: for (Method m : methods) {
      continue unless m.isVarArgs() && isStaticMethod(m);
      if (massageArgsForVarArgsCall(m, args) != null) true;
    }
  } else {
    Class c = o.getClass();
    _MethodCache cache = callOpt_getCache(c);

    if (cache.findMethod(method, args) != null) true;
      
    // try varargs
    L<Method> methods = cache.cache.get(method);
    if (methods != null) methodSearch: for (Method m : methods) {
      continue unless m.isVarArgs();
      if (massageArgsForVarArgsCall(m, args) != null) true;
    }
  }
  
  false;
}