> Actually my web application
....
> how can i resolve this error
One good strategy for solving this problem, would
be to post to a forum that discusses things that are
closely related to the problem. This forum does not
focus on either web-apps., or XML.
For those, you might try one of these three forums..
http://forum.java.sun.com/category.jspa?categoryID=20
..or..
http://forum.java.sun.com/forum.jspa?forumID=34