code: public void registerDefaultValueProcessor( Class target, DefaultValueProcessor defaultValueProcessor ) {
        if( target != null && defaultValueProcessor != null ) {
           defaultValueMap.put( target, defaultValueProcessor );
        }
     }
docs: Registers a DefaultValueProcessor.<br>
  [Java -&gt; JSON]
  
  @param target the class to use as key
  @param defaultValueProcessor the processor to register