This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
I don't know why you've done this, but returnRs is an ArrayList with one item in it: the ArrayList rsList. Change the code to simply eliminate returnRs everywhere; its unnecessary. Convert rsList to a String array and return that.