code: public static <E extends Enum<E>> EnumKeyDeserializer<E> newInstance( Class<E> enumClass ) {
          return new EnumKeyDeserializer<E>( enumClass );
      }
docs: <p>newInstance</p>
  
  @param enumClass class of the enumeration
  @return a new instance of {@link EnumKeyDeserializer}
  @param <E> a E object.