Jaxer and packed.it ... not possible yet
Unfortunately, my experience with Jaxer has been really cool but this project is too young to be used as a server side project, and this is only my opinion. First of all, the simple File API is great, but if you look for binary safe in the search form, you'll be redirect in an empty page ... quite hilarious, isn't it?! Anyway, I did not test the file.open("wb") mode, probably it's working, probably not ... who care about that? Me, because to pre compile packed.it projects using MyMin and then Zlib I need to write in binary mode ... no way guys! At the same time, there's not a true bridge for Java, at least that what I was looking for, since Jaxer could be integrated with TomCat, I wonder what are they waiting for to create an easy interface to call directly Java, or whatever mature server language you want. It will be an extreme start up improvement for your project, what's not possible yet, will be with some Java, Mono, Python, Ruby, PHP, or whatever is...