code: public void unregisterJsonValueProcessor( Class beanClass, String key ) {
        if( beanClass != null && key != null ) {
           beanKeyMap.remove( beanClass, key );
        }
     }
docs: Removes a JsonValueProcessor.<br>
  [Java -&gt; JSON]
  
  @param beanClass the class to which the property may belong
  @param key the name of the property which may belong to the target class