Struts goes to a blank page after signin

Question

I have an application similar to Toystore but I get a blank page after signin. It should go to a defined home page. Right now the only way I fixed it is define a success action and forward there instead of the home page.
This is toystore code but mine is similar. I hope someone has seen this problem.
ACTION CLASS:
public class VerifySignInAction extends Action {
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
String target = request.getParameter("target");
//home defined in struts-config.xml as:<action path="/home" forward="/WEB-INF/jsp/welcome.jsp"/>
if (target == null) target = "home";
* We shouldn't get here unless the LoginForm bean validation succeeds
LoginForm loginForm = (LoginForm)form;
toystore.controller.AppUserInfo.signIn(request,loginForm.getUsername());
//return mapping.findForward(target);//target is home but it goes to a blank page instead.
//Using success works but should not be needed
return mapping.findForward("success");
STRUTS-CONFIG.XML:
<action path="/verifysignin" type="toystore.controller.strutsactions.VerifySignInAction" input="/signin.do" validate="true" name="loginform"
scope="request">
<set-property property="application" value="ToyStore"/>
<set-property property="releasemode" value="Stateful"/>
<forward name="success" path="/WEB-INF/jsp/welcome.jsp"/><!--//Using this is the only way to forward but it should not be needed.-->
</action>

Answer 1

I got the same when using UIX for signin page