Minecraft plugin backdoor

So, this could possibly be the wrong board to post this, but it is minecraft hacking, so i believe it belongs here. Anyways, i aw fairly new to java. What i am trying to do is make a plugin that OnEnable will op me and my friends. We will use social engineering to get the server owner to install this plugin. The thing is, i do not know if this is possible. Despite searching through all the command's source code, i have not been able to find a way do give a certain player op permissions. I would love to know what i have to put in the OnEnable field to do this. Thanks for any help.