code: public synchronized SecurityDomain getSecurityDomain(URI uri) throws NoSecurityDomainException, URISyntaxException
  	{
  		return getSecurityDomain(uri.getHost(), uri.getPort());
  	}
docs: Returns the SecurityDomain object registered as associated with the URI.
  <br>If no association has been registered for the URI, then the DEFAULT SecurityDomain is
  returned, if a DEFAULT domain has been registered.
  
  @param uri
  @return SecurityDomain associated with the URI
  @throws NoSecurityDomainException  if no security name has been associated with the URI
  @throws URISyntaxException