Form no longer displayed

[Reinhard Hnat]

I am developing a web-application using Eclipse and Apache click 
deploing it with a Tomcat 6.6. Everything went fine until i inserted a 
line to an htm file and deleted it immediately afterwards. Since then i 
get the following output to the browser instead of my form:

/$headElements $form $jsElements
/
What could be broken? I am searching for the problem but can not find 
any cause.

Please give me some hints where to search for the problem.

Thanks
Reinhard