[undertow-dev] Welcome file does not seem to work with default servlet and /

Hi, I've encountered what seems like a but with the handling of welcome files. I am using Undertow 1.0.0 included in Wildfly 8.0.0 If I don't create a servlet mapping for the URL "/", then Undertow will automatically registers its own DefaultServlet as the mapping. I would like "/" to automatically invoke a servlet that is mapped to some path like "/foo". I don't setup an explicit mapping because I don't want my servlet to be the default servlet, because I still want static resources to get resolved automatically. To get this to work, I create a welcome file entry "foo". However, I think Undertow is ignoring this mapping in this circumstance. I've done some debugging into Undertow and found that when the ServletPathMatchesData is created, the DefaultServlet is given an exact match "/" which forces requiredWelcomeFileMatch to false, (ServletPathMatchesData constructor) even if requiredWelcomeFileMatch was true for the DefaultServlet. With requiredWelcomeFileMatch=false, the welcome file logic is skipped and control is given to the default servlet, which simply returns a 404 for "/". Is my logic just flawed, or is this a bug? Thank you