Re: funding jython development

Thanks very much for the offer to help! Others have given great
answers to (1) and (2), I can give a more detailed answer for (3):

On Thu, Mar 7, 2019 at 6:40 AM Albert Cardona <[email protected]> wrote:
> Question 3: rpython (from pypy) used to have a jvm backend in its git
> tree. I assume jython developers have considered pursuing that route,
> and if not, why not?
I discussed this with the PyPy folks some years back. It's a very
interesting prospect but it has a major stumbling block: a big
advantage that Jython has is the ability to leverage the advances in
the underlying JVM. It would be very difficult to utilize these
advances in a JVM oriented PyPy because PyPy has its own technologies
in these areas deeply baked in. To take one major example, Jython uses
the garbage collection technologies provided by the JVM, where a JVM
PyPy implementation would use the PyPy developed garbage collection
mechanisms which would not be as effective as the JVM native version.
The expense of trying to route around PyPy's technology in these areas
was deemed to high (for these reasons I think work on the JVM PyPy has
been stalled for a very long time).

-Frank