Java Virtual Machine in pure Node.js • Hacker News Board

Re: Java Virtual Machine in pure Node.js

#61

Post by cpeterso » Wed, Oct 30, 2013, 6:23 PM UTC

adam-a wrote: post #39

bsg75 wrote: post #24

Earlier quoted context omitted.

JS.js

https://github.com/jterrace/js.js/

And Mozilla's (mothballed) Narcissus: https://github.com/mozilla/narcissus

Re: Java Virtual Machine in pure Node.js

#62

Post by cpeterso » Wed, Oct 30, 2013, 6:25 PM UTC

Mozilla has written pdf.js to replace Adobe's PDF plugin and shumway.js to replace Adobe's Flash plugin. When will we see a java.js that replaces Java applets on the web?

Re: Java Virtual Machine in pure Node.js

#63

Post by mtdewcmu » Wed, Oct 30, 2013, 6:26 PM UTC

dlsym wrote: post #12

18ms for calculating Fibonacci numbers from 1 to 10. This is definitily bringing JAVA back to the good old days of enterprise execution speeds. :-) Really cool proof of concept! I would really enjoy seeing more projects like this!

Who doesn't wish it was still 1999? Hot stock market, millenium mania, cheap gas, dot-coms. Really slow Java makes it all come rushing back.

Re: Java Virtual Machine in pure Node.js

#64

Post by MPetitt » Wed, Oct 30, 2013, 6:29 PM UTC

cpeterso wrote: post #62

Mozilla has written pdf.js to replace Adobe's PDF plugin and shumway.js to replace Adobe's Flash plugin. When will we see a java.js that replaces Java applets on the web?

maybe they like oracle more than adobe

Re: Java Virtual Machine in pure Node.js

#65

Post by mtdewcmu » Wed, Oct 30, 2013, 6:34 PM UTC

I have a feeling James Gosling choked on his coffee this morning. :)

Re: Java Virtual Machine in pure Node.js

#66

Post by ghostdiver » Wed, Oct 30, 2013, 6:39 PM UTC

What's the point of doing this, why not just use Mozilla Rhino?

Re: Java Virtual Machine in pure Node.js

#67

Post by saraid216 » Wed, Oct 30, 2013, 6:46 PM UTC

antonpug wrote: post #31

Now, my question is. WHY!? I might be crazy, but does anyone see a legitimate use for this?

This question on this kind of topic needs to stop being asked on Hacker News. It's fair to ask whether or not there was a material usage intended for the project, but if isn't one, we really need to stop implying that there should be.

Re: Java Virtual Machine in pure Node.js

#68

Post by epsylon » Wed, Oct 30, 2013, 6:50 PM UTC

angersock wrote: post #3

Finally, I can run JRuby on my node server!

From poster with similar project above:

https://github.com/int3/doppio/wiki/Successes

> We're also making progress on others, but we're not quite there yet: JRuby, Clojure, Scala REPL

I think I just had a micro heart attack reading that.

Re: Java Virtual Machine in pure Node.js

#69

Post by chc » Wed, Oct 30, 2013, 6:51 PM UTC

ghostdiver wrote: post #66

What's the point of doing this, why not just use Mozilla Rhino?

Rhino is the opposite of this.

Re: Java Virtual Machine in pure Node.js

#70

Post by 6ren » Wed, Oct 30, 2013, 6:56 PM UTC

How hard is it to write a JVM? I'd think it pretty easy, as it's intended to be small and easily portable.

You could even write one in Java (and I'm sure it's been done, many times). EDIT e.g. http://igormaznitsa.com/projects/mjvm/index.html

Of course, doing all the tricky JIT etc of the JVM is a different story...