Hi Asad,
I am curious -- where are you trying to access the portrait URL from that you don't have a theme display?
Apart from my question, the method that uses the theme display only seems to require the image path. Perhaps you can calculate it separately. My search of the source revealed it as calculated like so --
setPathThemeImages(
cdnBaseURL + themeStaticResourcePath + theme.getImagesPath());
Once you have it, and the user details of course, then you can just use the logic from that method (that uses the ThemeDisplay parameter). The UserConstants class is in the portal-service.jar so it is available across the server.
return UserConstants.getPortraitURL(
themeDisplay.getPathImage(), isMale(), getPortraitId(),
getUserUuid());
Let me know if that helps -- and where you are trying to access the portrait URL from.
