@Nullable
  public static String getPropertyNameByAccessorName(String accessorName) {
    if (isGetterName(accessorName)) {
      return getPropertyNameByGetterName(accessorName, true);
    }
    else if (isSetterName(accessorName)) {
      return getPropertyNameBySetterName(accessorName);
    }
    return null;
  }
@Nullable
  public static String getPropertyNameByAccessorName(String accessorName)