/**
* Encode the message except for the body.
*
* @return The string except for the body.
*/
public StringBuilder encodeMessage(StringBuilder retval) {
// String retval;
if (statusLine != null) {
statusLine.encode(retval);
super.encodeSIPHeaders(retval);
} else {
retval = super.encodeSIPHeaders(retval);
}
return retval;
}
