had trouble getting 7zip-JBindings to work well looks like were in for an update so with any luck everyone will be able to automatically extract Yay!!
this message was posted on sourceforge by the source himself
Hello Alen,
Thank you very much for your post

I have a good news for you. The project is alive. I'm working on it continuously to bring out a new release containing more than 5 years of development.
Check out the RW branch: https://github.com/borisbrodski/sevenzi ... ng/tree/RW
It binds a newer version of 7-Zip-JBinding and provides full support for creating 7z, Zip, Gzip, Bzip2 and Tar archives and updating existing ones.
It also incorporates a convenient (at least I hope so) API for creating archives of some some specified archive type, but also a more complex API to create archives of dynamically chosen archive types.
Currently I'm finishing JUnit tests, testing archive updates. Then I will write some JavaDoc and extend the documentation on the web site.
If you really like to test a poor documented current state of the branch I could build it for you. Which platform do you prefer? Currently I have Linux64 version, but could build another one, if you wish.
Best regards,
Boris Brodski
Regards Martyn
ps any trouble with filebot 7zip on linux let me know