Strange extra entry in File Format dropdown

Hi @imagejan,

Maybe I posted this already elsewhere but I could not find it anymore.

Using this code:

I am getting this:

Any idea what I am doing wrong?

Sorry for the late reply, @Christian_Tischer. Looks like a bug to me. (Reminds me of imagej/imagej-legacy#171, but probably not the same issue…) Ping back if it still happens, and we can file an issue in the right place.

I think that’s what toString() returns for the file extension filter that’s implemented as an anonymous inner class and used inside SwingFileWidget to implement the style="extensions:xlsx/xls" parameter attribute. We should definitely change this to not show a cryptic hash, but useful information about the file filter instead.