I created Java packages for the Synology NAS systems. These are meant for the YAMJ package I'm working on, but can of course be used by other scripts and programs.
Meanwhile I'm working on a YAMJ package (thanks to a hint from Omertron), but it needs a lot of work still to be done. I'll keep you posted.
Java is currently only available on x86 and ARM systems. The package is not startable but will be available from the command line after installation.
Java will be located at:
Java SE Embedded is Available for: Marvell Orion mv5281, Marvell Kirkwood mv6281, Marvell Kirkwood mv6282, Intel Atom D410, Intel Atom D510, Intel Atom D525, Intel Atom D2700, Intel Core i3.
Check this page to find out what processor your NAS has.
Just add my package repository http://packages.MissileHugger.com/ to the Package Center in DSM.
Go to "Other Sources" and install Java SE Embedded.
At the moment, the packages are for x86 and ARM only and they are still in béta state.