assertEquals( 1, mmgr.size() );
assertNotNull( msg.getMessageId() );
assertNull( msg.getInReplyTo() );
assertSame( mb, mmgr.getMailbox( msg.getMessageId() ) );
mb.closeRead();
assertEquals( 0, mmgr.size() );
assertNull( mmgr.getMailbox( msg.getMessageId() ) );
Message rmsg = msg.reply( MyValueFactory.mt_add_result );