code: public static UserMentionEntity createUserMentionEntity(int start, int end, String name, String screenName,
                                                              long id) {
          return new UserMentionEntityJSONImpl(start, end, name, screenName, id);
      }
docs: static factory method for twitter-text-java
  
  @return user mention entity
  @since Twitter4J 2.2.6