code: public <T> void registerCustomSerializer(Class<T> class1, JsonSerializer<T> forType) {
      this.serializer.registerCustomSerializer(class1, forType);
    }
docs: Registering custom serializer allows to the JSonView to deal with custom serializations for certains field types.<br>
  This way you could register for instance a JODA serialization as  a DateTimeSerializer. <br>
  Thus, when JSonView find a field of that type (DateTime), it will delegate the serialization to the serializer specified.<br>
  Example:<br>
  <code>
  JsonViewSupportFactoryBean bean = new JsonViewSupportFactoryBean( mapper );
  bean.registerCustomSerializer( DateTime.class, new DateTimeSerializer() );
  </code>
  
  @param <T>     Type class of the serializer
  @param class1  {@link Class} the class type you want to add a custom serializer
  @param forType {@link JsonSerializer} the serializer you want to apply for that type