High Description
When a file doesn't exists a 200 with size 0 is returned.
When fixing this also please don't catch Exception and hide the stack trace which make analyzing on production systems hard. For example when the resource doesn't exists the following message is logged which isn't very helpful:
02.08.2010 01:08:40 WARN [org.hippoecm.hst.servlet.StaticResourceServlet.doGet():243] Exception during writing content of /icon-blog.png: java.io.IOException: Stream closed