public void makeImmutable(){
  mutable=false;
  if (authnContextClassRef != null) {
    authnContextClassRef=Collections.unmodifiableList(authnContextClassRef);
  }
  if (authnContextDeclRef != null) {
    authnContextDeclRef=Collections.unmodifiableList(authnContextDeclRef);
  }
  return;
}

public void makeImmutable ( ) { mutable = false ; if ( authnContextClassRef != null ) { authnContextClassRef = Collections . unmodifiableList ( authnContextClassRef ) ; } if ( authnContextDeclRef != null ) { authnContextDeclRef = Collections . unmodifiableList ( authnContextDeclRef ) ; } return ; }
makes the obejct immutable
