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 think the original poster is referring to HTML frames and framesets and not java.awt.Frame objects. Have your servlet spit out the HTML needed to create the desired frame set layout. The technique would be to have the src attribute of each frame refer to a servlet and not a static file. The browser would make the appropriate requests to your servlet(s).