dm.receive(is,getTimeout());
if (dm.getSize()>256) {
throw new TestException("Message fragment size"
+ " over 256 bytes: " + dm);
}
AbortMessage am = new AbortMessage();
am.send(os);
if (!abortReceived(is)) {
throw new TestException("Abort message was not"
+ " received from the server");
}
}