use *.js find *.js.gz

[nroe]

fileFinder.from(path).size('>', 0).findFiles("*.js");

result:
/wp-includes/js/tinymce/wp-tinymce.js.gz'

[davidkudera]

Thanks for your feedback.

As a temporary solution you can try to add $ after .js. All find masks are classic regular expressions with the exception of asterisk which is translated to [0-9a-zA-Z/.-_ ]+