code: @Override
      public IPortletWindowId getDefaultPortletWindowId(
              HttpServletRequest request, IPortletEntityId portletEntityId) {
          final IPortletWindowId portletWindowId = this.createPortletWindowId(null, portletEntityId);
          logger.trace(
                  "Determined default portlet window id {} for portlet entity {}",
                  portletWindowId,
                  portletEntityId);
          return portletWindowId;
      }
docs: /* (non-Javadoc)
  @see org.apereo.portal.portlet.registry.IPortletWindowRegistry#getDefaultPortletWindowId(org.apereo.portal.portlet.om.IPortletEntityId)