(My bat it was archived)

The point here is that I did not change anything in my code, suddenly for no 
reason it stopped working while I was using that class for months

as mentioned in an earlier post, I had to use an older version cos the latest 
has a missing or non working feature, cant remember
Something to do with tables or something

I'll investigate further cos I am busy on other things

regards

-----Original Message-----
From: SNMP4J [mailto:snmp4j-boun...@agentpp.org] On Behalf Of Frank Fock
Sent: jeudi 29 décembre 2016 10:26
To: snmp4j@agentpp.org
Subject: Re: [SNMP4J] FW: suddent error coming out of nowhere

Hi Philippe,

It is a simple NullPointerException and you have the stacktrace and the code.
It should be easy to identify. From the stacktrace, it seems that you are using 
an old version of SNMP4J. It would be always helpful to note that (and the 
exact version number) in your request for help.

Most likely, you are trying to discover the engine ID for a "null" address.
Which cannot work in any case.

Best regards,
Frank

Am 29.12.2016 um 07:41 schrieb FLORENT Philippe:
> Is this mailing list still active ?
> Can someone answer ?
>
> From: FLORENT Philippe
> Sent: mardi 13 décembre 2016 09:45
> To: snmp4j@agentpp.org
> Subject: FW: suddent error coming out of nowhere
>
> Now I get the same on my pc, no update was made on my pc nor on the 
> remote system Can someone guide me through this ?
> thanks
>
> From: FLORENT Philippe
> Sent: lundi 12 décembre 2016 12:02
> To: snmp4j@agentpp.org<mailto:snmp4j@agentpp.org>
> Subject: suddent error coming out of nowhere
>
> Hi,
>
> Suddently my collegue have issues with the app I ve written (works 
> perfectly fine on my pc) I rebooted his pc, but still the same
>
> java.lang.NullPointerException
>                  at java.util.Hashtable.remove(Unknown Source)
>                  at org.snmp4j.mp.MPv3.removeEngineID(MPv3.java:356)
>                  at 
> org.snmp4j.Snmp.discoverAuthoritativeEngineID(Snmp.java:1177)
>                  at 
> starrwarr.remote.snmp.SnmpProber.Connect(SnmpProber.java:93)
>                  at starrwarr.Machine.run(Machine.java:97)
>                  at java.lang.Thread.run(Unknown Source)
>
> this was not occurring before and I cant figure out what's going wrong
>
> here is the code I use :
>
>                      TransportMapping transport = new 
> DefaultUdpTransportMapping();
>                      snmp = new Snmp(transport);
>                      USM usm = new USM(SecurityProtocols.getInstance(),new 
> OctetString(MPv3.createLocalEngineID()), 0);
>                      SecurityModels.getInstance().addSecurityModel(usm);
>                      transport.listen();
>                      snmp.listen();
>
>              Address targetAddress = 
> GenericAddress.parse("udp:"+ipAddress+"/"+port);
>              target = new UserTarget();
>              target.setAddress(targetAddress);
>              target.setRetries(1);
>              target.setTimeout(5000);
>              target.setVersion(SnmpConstants.version3);
>              target.setSecurityLevel(SecurityLevel.AUTH_PRIV);
>              target.setSecurityName(new OctetString(userName));
>
> thanks
> _______________________________________________
> SNMP4J mailing list
> SNMP4J@agentpp.org
> https://oosnmp.net/mailman/listinfo/snmp4j

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