/**
* Package private constructor.
*
* <p>Note that nested messages have no containing folder, nor a message number.
*/
IMAPNestedMessage(IMAPMessage m, BODYSTRUCTURE b, ENVELOPE e, String sid) {
super(m._getSession());
msg = m;
bs = b;
envelope = e;
sectionId = sid;
setPeek(m.getPeek());
}
