[SNMP4J] Problem Sending SNMP V3 Trap

[Napachara Rattanavilai]

want sending trap(SNMPV3). It's not work but I used SNMPV1 and SNMP V2 --> 
It's work.
This Code :
Address targetAddress = GenericAddress.parse("udp:127.0.0.1/162");
			CommunityTarget target = new CommunityTarget();
			target.setCommunity(new OctetString("public"));
			target.setAddress(targetAddress);
			target.setVersion(SnmpConstants.version3);

			ScopedPDU pdu = new ScopedPDU();
			pdu.setType(ScopedPDU.TRAP);

			DefaultUdpTransportMapping udpTransportMap=new 
DefaultUdpTransportMapping();

			pdu.add(new VariableBinding(SnmpConstants.snmpTrapOID, 
SnmpConstants.linkDown));
			try {

			    Snmp snmp = new Snmp(udpTransportMap);

			    ResponseEvent response =  snmp.send(pdu, target);
			    System.out.println("pdu:"+pdu);
			    System.out.println("response:"+response);
			    snmp.close();
			} catch (Exception e) {
			  e.printStackTrace();
			}
Exception :
org.snmp4j.MessageException: Message processing model 3 returned error: 
-1402
	at org.snmp4j.MessageDispatcherImpl.sendPdu(MessageDispatcherImpl.java:420)
	at org.snmp4j.Snmp.sendMessage(Snmp.java:970)
	at org.snmp4j.Snmp.send(Snmp.java:794)
	at TestSNMPTrap.sendV3(TestSNMPTrap.java:117)
	at TestSNMPTrap.main(TestSNMPTrap.java:50)

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