public void addClaim(String claim,boolean required){
  if (required && !_requiredClaims.contains(claim))   _requiredClaims.add(claim);
 else   if (!_optionalClaims.contains(claim))   _optionalClaims.add(claim);
}

public void addClaim ( String claim , boolean required ) { if ( required && ! _requiredClaims . contains ( claim ) ) _requiredClaims . add ( claim ) ; else if ( ! _optionalClaims . contains ( claim ) ) _optionalClaims . add ( claim ) ; }
adds a claim uri to the required or optional claim list .
