[SNMP4J] problem to receive traps

[Stefan M]

Hello List,

I try to receive traps from a couple of access points unsing snmp4j. I 
just copied the code from the api docs which add a CommandResponder to 
the snmp object using the following code:

...
this.snmp = new Snmp(new DefaultUdpTransportMapping());
CommandResponder trapPrinter =
   new CommandResponder() {
     public synchronized void processPdu(CommandResponderEvent e) {
         LOGGER.debug("e = "+e);
         PDU command = e.getPDU();
         if (command != null) {
             LOGGER.debug("TRAP>> "+command);
         }
     }
};
snmp.addCommandResponder(trapPrinter);
this.snmp.listen();
...

The access point I am using in my test environment is configured to send 
TRAPs on "whatever" event to the IP of my test machine. When I use the 
MibbleBrowser (www.mibble.org, great tool!) to ask for the TRAP PDUs, it 
tells me that 18 PDU had been send so far...Problem: I do not get any 
debug message on my console. Is there something I forgot to configure?

thanx,

Stefan