Portlets - Loosing state in wicket portlets

[Benjamin Ernst]

Hi,

I am using two Wicket-Portlets in a Liferay 5.2.1 Portal. Both Portlets have
a link which switches to another page within the portlet (via
setResponsepage(new
Page()) ).
When I click the link in Portlet_1 the page within the portlet one changes
as desired. After that I click the link in Portlet_2 and the page in
Portlet_2 changes as desired, but i Portlet_1 the page changes to the
Homepage.

I think that the problem might be in the getWicketURL(PortletRequest
request, String pageType, String defaultPage) - method form
WicketPortlet.java:

protected String getWicketURL(PortletRequest request, String pageType,
String defaultPage)
    {
        String wicketURL = null;
        // get the name of the wicket url paramater, as looked up from a
request attribute called
        // WicketPortlet#WICKET_URL_PORTLET_PARAMETER_ATTR
        String wicketUrlParameterName =
(String)request.getAttribute(WicketPortlet.WICKET_URL_PORTLET_PARAMETER_ATTR);
        if (request instanceof ActionRequest)
        {
            // try to lookup the passed in wicket url parameter
            wicketURL = request.getParameter(wicketUrlParameterName);
        }
        else if (request instanceof ResourceRequest)
        {
            wicketURL = ((ResourceRequest)request).getResourceID();
        }
        else
        {
            // try to lookup the passed in wicket url parameter, suffixed
with the portlet mode
            String parameterName = wicketUrlParameterName +
request.getPortletMode().toString();
            wicketURL = request.getParameter(parameterName);
        }

        // if the wicketURL could not be retrieved, return the url for the
default page
        if (wicketURL == null)
        {
            wicketURL = getWicketConfigParameter(request,
CONFIG_PARAM_PREFIX + pageType,
                defaultPage);
        }
        return wicketURL;
    }

 - In the RenderRequest for Portlet_2 the wicketUrlParameterName is for the
Linklistener that was clicked. This works fine.
 - In the RenderRequest for Portlet_1 the wicketUrlParameterName is null. So
by default the defaultPage of Portlet_1 is loaded, which is the Homepage.

Is this the correct behaviour?
I think the wicketURL for the RenderRequest for Portlet_1 should not be the
defaultPage but instead the last rendered Page from Portlet_1. Is there a
way to get the URL of the last page from Wicket?

Thanks for any help!

--Benjamin