code: public static RenameHandler create(boolean loadFromClasspath) {
          RenameHandler handler = new RenameHandler();
          if (loadFromClasspath) {
              handler.loadFromClasspath();
          }
          return handler;
      }
docs: Creates an instance, providing the ability to load types in config files.
  <p>
  This is not normally used as the preferred option is to edit the singleton.
  <p>
  If the flag is set to true, the classpath config files will be used to register types and enums.
  
  @param loadFromClasspath  whether to load any types in classpath config files
  @return a new instance, not null