code: public JsonSerializerParameters addIgnoredProperty( String ignoredProperty ) {
          if ( null == ignoredProperties ) {
              ignoredProperties = new HashSet<String>();
          }
          ignoredProperties.add( ignoredProperty );
          return this;
      }
docs: <p>addIgnoredProperty</p>
  
  @param ignoredProperty a {@link java.lang.String} object.
  @return a {@link com.github.nmorel.gwtjackson.client.JsonSerializerParameters} object.