Code crash when running on iOS 11

Hi there,

The following codes run well on iOS 10 for my Facebook ANE, but crash when I upgrade my iPad to iOS 11. The Air sdk is version 26.

  NSString *callback = (argc >0 && argv[0] !=NULL ? FPANE_FREObjectToNSString(argv[0]) : NULL);
  NSString *handle = (callback == NULL ? @"BASIC_USER_PROFILE" : [@"BASIC_USER_PROFILE-" stringByAppendingString:callback]);
  [xfFB dispatchEvent:logging withMessage:[@"[requestBasicUserProfile] [callback:" stringByAppendingFormat:@" %@]",callback]];
  FBSDKProfile* profile = [FBSDKProfile currentProfile];
  FREObject result = NULL;
  FREObject basicProfileResult = NULL;
  FREResult classCallResult;
  FREObject excep = NULL;
  if (profile != NULL) {
  classCallResult = FRENewObject((const uint8_t*)"com.xflying.ane.xffb.data.BasicUserProfile",0,NULL,&result, excep);
  if (classCallResult == FRE_OK) {
  [xfFB dispatchEvent:logging withMessage:@"Basic Profile init ok"];
  FRESetObjectProperty(result, (const uint8_t*)"firstName",
   FPANE_NSStringToFREObject(profile.firstName),
   NULL);
  FRESetObjectProperty(result, (const uint8_t*)"lastName",
   FPANE_NSStringToFREObject(profile.lastName),
   NULL);
  FRESetObjectProperty(result, (const uint8_t*)"linkURI",
   FPANE_NSStringToFREObject([profile.linkURL absoluteString]),
   NULL);
  FRESetObjectProperty(result, (const uint8_t*)"middleName",
   FPANE_NSStringToFREObject(profile.middleName),
   NULL);
  FRESetObjectProperty(result, (const uint8_t*)"name",
   FPANE_NSStringToFREObject(profile.name),
   NULL);
  FRESetObjectProperty(result, (const uint8_t*)"refreshDate",
   FPANE_doubleToFREObject([profile.refreshDate timeIntervalSince1970]),
   NULL);
  FRESetObjectProperty(result, (const uint8_t*)"userID",
   FPANE_NSStringToFREObject(profile.userID),
   NULL);
  classCallResult = FRECallObjectMethod(result, (const uint8_t *)"toJson", 0, NULL,
    &basicProfileResult, NULL);
  }
  if (classCallResult == FRE_OK) {
       [xfFB dispatchEvent:handle withMessage:FPANE_FREObjectToNSString(basicProfileResult)];
  } else {
 ... ...
  }
  [xfFB dispatchEvent:@"BASIC_USER_PROFILE_ERROR" withMessage:[@"[requestBasicUserProfile] " stringByAppendingFormat:@"%@",error]];
  }

it crashes at line 44, but I am not sure is it because of the code (FRECallObjectMethod) at line 39 since the same function call FPANE_FREObjectToNSString at line 1 returns as expected.

The crashed function call FPANE_FREObjectToNSString is defined as below, so the actual crash point is at line 5 which calls FREGetObjectAsUTF8, the object is generated by FRECallObjectMethod.

NSString * FPANE_FREObjectToNSString(FREObject object)
{
    uint32_t stringLength;
    const uint8_t *string;
    FREGetObjectAsUTF8(object, &stringLength, &string);
    return [NSString stringWithUTF8String 😞char*)string];
}

Any crash case reported the same issue? Is it a bug?

Regards,

David