[SNMP4J] [Fwd: java.lang.IllegalArgumentException error]

[atike.demirbas at ogr.deu.edu.tr]

---------------------------- Original Message ----------------------------
Subject: java.lang.IllegalArgumentException error
From:    atike.demirbas at ogr.deu.edu.tr
Date:    Wed, May 11, 2016 4:02 pm
To:      snmp4j at agentpp.org.
--------------------------------------------------------------------------

Hello,
I have developed an software for my school project. I have tried to
collect information on agent machines. When i do it for snmpv1, it is okay
but when i do it for snmpv3 i have an error. I have searched this problem
however i haven't found it. Please, help me.

There is my code;

Snmp client=null;
        try{
            client=new Snmp(new DefaultUdpTransportMapping());
            Address add=new UdpAddress("192.168.2.3/161");
            client.listen();

          //  USM usm=new USM(SecurityProtocols.getInstance(),new
//OctetString("MPv3.createLocalEngineID()"),0);
         //   SecurityModels.getInstance().addSecurityModel(usm);

             UsmUser user = new UsmUser(new OctetString("nagios"),
                                     AuthMD5.ID,
                                     new OctetString("User3Password"),
                                     PrivDES.ID,
                                     new OctetString("User3Encyrption"));
             client.getUSM().addUser(new OctetString("nagios"), user);

            UserTarget target=new UserTarget();
            target.setAddress(add);
            target.setRetries(2);
            target.setTimeout(1500);
            target.setSecurityLevel(SecurityLevel.AUTH_PRIV);
            target.setSecurityModel(SecurityModel.SECURITY_MODEL_USM);
            target.setSecurityName(new OctetString("nagios"));

            PDU request=new PDU();
            request.setType(PDU.GET);
            OID oid=new OID(".1.3.6.1.2.1.1.5.0");
            request.add(new VariableBinding(oid));
            ResponseEvent event=client.send(request, target);
            System.out.println(event.getResponse());

        }

Error : java.lang.IllegalArgumentException: MPv3 only accepts ScopedPDU
instances as pdu parameter

This error point out "client.getUSM().addUser(new OctetString("nagios"),
user);"

Lots of example that i examined used "client.getUSM().addUser" but my code
is given me an error, i don't understand why it gave me.

Thanks for your help.