rem: if ( it == mServerMap.end() ) return -1;
add: if ( it == mServerMap.end() ) return SOAP_FAULT;
context: int mySendCallback( struct soap *soap, const char *s, size_t n ){  QMap<struct soap *,GroupwiseServer *>::ConstIterator it;  it = mServerMap.find( soap );  if ( it == mServerMap.end() ) return -1;  return (*it)->gSoapSendCallback( soap, s, n );}