zero length file written?

[i-make-robots]

Hello! Thank you for this library.

I have a system for reading/writing ImageIO supported formats, already tested with png, tif, bmp, jpg, pio, etc.
Added org.sejda.imageio:webp-imageio:0.1.6 and reading webp files OK. When I try to write out

ImageIO.write(img, "webp", outputStream);

I get a zero length file. No error is generated. No exception thrown. Any ideas?

[i-make-robots]

I found the PR that fixes it: #27
Thanks!