404. That’s an error.

The requested URL /bookmarks/mark?op=edit&output=popup&bkmk=http%3A%2F%2Fwww.java-forums.org%2Fjavaserver-pages-jsp-jstl%2F23174-problem-related-custom-tags-jsp.html&title=problem+related+to+custom+tags+in+jsp was not found on this server. That’s all we know.