Zabbix can not get values from recent WebLogic, e.g. 12c. Because
accessing url is fixed to following,
"service:jmx:rmi:///jndi/rmi://" + conn + ":" + port + "/jmxrmi".

But WebLogic does not accept it and requires following,
service:jmx:iiop:///jndi/iiop://" + conn + ":" + port + "/weblogic.management.mbeanservers.runtime"

So, I made a patch for generalizing accessing url with adding 2 args for jmx[] key. Ideally, the protocol and the jndi name are stored in DB with accessing interface, but I do not decide and add to key.