/**
* Explicitly cancels the packet collector so that no more results are queued up. Once a packet
* collector has been cancelled, it cannot be re-enabled. Instead, a new packet collector must be
* created.
*/
public void cancel() {
// If the packet collector has already been cancelled, do nothing.
if (!cancelled) {
cancelled = true;
conection.removePacketCollector(this);
}
}
