I am having a similar problem as Ant produces jsfl with backslashes instead of slashes except that I'm running under Maven.
I'd like to generate cross-platform paths relative to Maven's built-in property ${basedir}. The problem is that under Windows, ${basedir} resolves to a path containing Windows-style slashes. Is there an easy way for me to get ${basedir} into a form that always uses Unix-style slashes even under Windows?