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.
On your way in you may have missed that JavaRanch has a policy on display names, and yours does not comply with it - please adjust it accordingly, which you can do right here. Thanks for your prompt attention to this matter.
But the mainly difference between these methods is that the "getNamedDispatcher()" method from (ServletContext interface) does not add some request "attributes" to the request operation. It means that the included or forwarded page are not able to get some attributes from the request sent.