We are using Ant Zip task, which is a bit of moral obsolete (low processing speed for big files).
Can anyone point me out to mature ant task ready for production using that supports multithreaded for compression/decompression?
First of all I wish to increase speed of processing archive files.
I found 7ZIP Ant task, but it looks a bit abandoned and it don't support multithreaded as well.
Zip/Jar tasks work well because Java (hence ant) have support for them built in (not sure about the tar support). Built in-support would require 7zip written in Java or at least included in some ant task. It is very easy to write Ant taks. Write you own and shell out to a 7zip/pbzip/etc. If you're REALLY enterprising, give this a shot ... a LZMA library from 7zip w/ Java support
7-zip downloads, CLI versions too
To decrease external dependencies, just bundle a version of the cli compression tool you want to use.
I believe many of the executables (7zip specifically) have cli versions for multiple platform.