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.
It looks to me like this may be an error in your struts-config.xml file. Make sure that the /stockselect action is mapped to a class that exists, has a public no-args constructor, and extends org.apache.struts.action.Action.