when jetty runs, if you change the static html and javascript file, the exception message throws in eclipse and it is "save can’t be complete".
The reason is that in windows jetty will cache the static html page, and hold the lock, so other processes can’t change it.
The method is that change the file "orgmortbayjettywebappweb
Reference to:
http://docs.codehaus.org/display/JETTY/Files+locked+on+Windows