protected void addCommonComponent(XMLComponent component){
  if (fCommonComponents.contains(component)) {
    return;
  }
  fCommonComponents.add(component);
  addRecognizedParamsAndSetDefaults(component);
}

protected void addCommonComponent ( XMLComponent component ) { if ( fCommonComponents . contains ( component ) ) { return ; } fCommonComponents . add ( component ) ; addRecognizedParamsAndSetDefaults ( component ) ; }
adds common component to the parser configuration . this method will also add all of the component ' s recognized features and properties to the list of default recognized features and properties .
