[SNMP4J] SNMP send() exception
Frank Fock
fock at agentpp.com
Fri Oct 16 00:44:05 CEST 2009
Scott,
Please see the change log of SNMP4J 1.10:
* Fixed: NullPointerException in PendingRequest.pduHandleAssigned
when retry > 0.
So upgrading should fix the problem.
Best regards,
Frank
Mackay, Scott wrote:
>
> I am using the library, 1.93 I believe, and getting an odd error.
>
> in a SNMP send( send(PDU pdu, Target target) )
>
> it all works fine, but at some point start getting Exceptions listed:
> Exception in thread "Timer-24" java.lang.NullPointerException
> at org.snmp4j.Snmp$PendingRequest.pduHandleAssigned(Unknown Source)
> at org.snmp4j.MessageDispatcherImpl.sendPdu(Unknown Source)
> at org.snmp4j.Snmp.sendMessage(Unknown Source)
> at org.snmp4j.Snmp$PendingRequest.run(Unknown Source)
> at java.util.TimerThread.mainLoop(Unknown Source)
> at java.util.TimeThread.run(Unknown Source)
>
> the send does not throw it, though as we have a try/catch around it that does not get raised.
> We also check for a null response and a null response.getResponse(), along with checking for
> response.getResponse().getErrorStatus()!=SnmpConstants.SNMP_ERROR_SUCCESS
> but none of those seem to be true. The target may have reset, so I am not sure about any built up authentication in a bad state, but surprised none of the above were raised. I have not reduced the code segment to more narrowly reproduce, but was wondering if there were any other status checks which are normally done to validate the send's results.
>
>
> -Scott
>
>
>
>
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