public Object addToEnvironment(final String propName, final Object propVal)
     throws NamingException {
   return rootContext.addToEnvironment(propName, propVal);
 }
 public Object removeFromEnvironment(final String propName) throws NamingException {
   return rootContext.removeFromEnvironment(propName);
 }
 public FastHashtable<String, Object> getEnvironment() throws NamingException {
   return rootContext.getEnvironment();
 }