Package javax.management does not exist

import javax.management.snmp.SnmpDefinitions;

import javax.management.snmp.SnmpOid;

import javax.management.snmp.SnmpVarBindList;

import javax.management.snmp.manager.SnmpPeer;

import javax.management.snmp.manager.SnmpParameters;

import javax.management.snmp.manager.SnmpRequest;

import javax.management.snmp.manager.SnmpSession;

//import javax.management.snmp.manager.SnmpEventReportDispatcher;

import com.sun.jdmk.Trace;

import com.sun.jdmk.snmp.SnmpOidTableSupport;