Room room = conference.findOrCreateRoom(ROOM1_JID, "Room 1");
room.addOccupant(OCCUPANT2_JID, "nick");
Decline decline = new Decline(null, OCCUPANT2_JID, reason);
// send message to occupant 1
Stanza error = sendMessage(OCCUPANT1_JID, ROOM1_JID, null, null, new X(NamespaceURIs.XEP0045_MUC_USER, decline), null);
assertNull(error);
X expectedX = new X(new Decline(OCCUPANT1_JID, null, reason));
// verify stanzas to existing occupants on the exiting user
assertMessageStanza(ROOM1_JID, OCCUPANT2_JID, null, null, null, expectedX, occupant2Queue.getNext());
assertNull(occupant1Queue.getNext());
}