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.
However, there is an "almost free" tool that is orders of magnitude better than WST called MyEclipse. It's only 29.95 per year. I'd suggest you do the trial download, compare it to WST and see what you think. Here's the link:
I'm using Exadel Studio which is pretty slick (has a few minor glitches but they are minor) They do a free one and a buy it version - the free one lags a bit in functionality but it's great - handles struts and jsf