After some efforts I finally get cobertura running correctly for my web application on a tomcat server. Everything seems fine until I committed it to the svn and hudson finished(failed) his work. Without this build script I would have never (or later) discovered this issue. My build script tried to move the catalina.log to another directory but the catalina.log was missing. After some testing I as
![Side effects of cobertura](https://cdn-ak-scissors.b.st-hatena.com/image/square/98d6f053a97a87156775f60757c60865d0f2c47d/height=288;version=1;width=512/https%3A%2F%2Fcdn.sstatic.net%2FSites%2Fstackoverflow%2FImg%2Fapple-touch-icon%402.png%3Fv%3D73d79a89bded)