Ensure Portability to Java Version

[sirinath]

Can you put testing in place so these are readily potable and usable from AJ version also.

[mojavelinux]

We need testing in general. At the moment, nothing in this repository is tested at all.

Having said that, given this is a lab, the focus isn't really on portability. I think once an extension has proven to be useful, it should be graduated into its own repository where we can give it all the engineering rigor necessary to ensure portability.