Welcome to the JavaRanch. We are all volunteers here, answering questions in our spare time so we ask that you
be patient if someone doesn't drop everything to assist you an hour after you post.
If you want to populate a List from a JSP page, you have to use
indexed properties so
Struts knows how to rebuild the list (yes, that link is for Struts 1.3, but the principle still applies in Struts 2.x).