The short answer is: probably not (yet).
The a bit longer answer is that it will only run on platforms that have the pkgmk and pkgtrans tools installed in PATH. If you're on a platform without these tools installed natively you can try to install the tools from the Heirloom project.
It wouldn't be very hard to implement a basic version of these tools in plain java, but it will take a bit of effort and not least testing. See the Developers page for more information about how to develop the plugin and specification of the package data stream format.