After a user logged and press my page url in this page if user press confirm button i want to relaod my page not the home page
this solution work but it's reload the home page not my page
Best How To :
A GWT application is a single page application. So if you reload the web page you get your start page, unless you use the history tokens. See http://www.gwtproject.org/doc/latest/DevGuideCodingBasicsHistory.html When you have a history token the page is still reloaded, but based on the history token you can open the page you want to show. I guess you don't have the history token set, so you'll get your home page.
As an extra thought. It looks like you built the login in GWT. A better solution is to provide a separate login page. And when the user is successfully logged in then open the application.