New JDK 7 Feature: Support for Dynamically Typed Languages in the JVM

http://java.sun.com/developer/technicalArticles/DynTypeLang/index.html

by davatk • 17 years ago

87 15 17 years ago

java.sun.com

mahmud2• 17 years ago

OT:

I knew it!

http://news.ycombinator.com/item?id=727427

JRuby guys quit on Oracle and went with EngineYard. Yeah, because they knew they only sponsored the JSR for dynamic languages. I too would quit my day job if Sun was customizing the JVM to support my compiler better.

[Edit: s/ibm/oracle/]

dminor3• 17 years ago

They were employed by Sun, not IBM, and already worked on JRuby full time. I think this was more about integration into the Ruby community as well as getting a good JRuby deployment option in place at EY, as well as uncertainty over Oracle's acquisition of Sun.

Edit -- Charlie Nutter on jruby-user: "The primary reason for leaving was the high level of uncertainty involved."

mahmud2• 17 years ago

Good catch, but still. If they knew Sun had a JSR waiting to leave the door that would essentially put their pet project on the map, it makes perfect sense to go with a more cutting-edge vendor who would care for it, maybe negotiating better pay, or even waiting another year before launching your own support-shop.

jherdman• 17 years ago

Thank god for Instapaper (http://www.instapaper.com)! That's one long article that will make for fine, fine nerdy subway reading.

acangiano• 17 years ago

This should be the Java equivalent of the Dynamic Language Runtime (DLR) built on top of the CLR.

dminor3• 17 years ago

Charlie Nutter of JRuby did a (very long) post about invokedynamic on his blog awhile back: http://blog.headius.com/2008/09/first-taste-of-invokedynamic...

jongraehl• 17 years ago

How about continuations and TCO while we're at it?

c00p3r3• 17 years ago

What is JDK 7? Yet another marketing buzzword? Would it happen to run on emerged ARM-based platforms? Netbooks? iPhone? Android? Symbian? Whatever?

alexgartrell• 17 years ago

Java Development Kit, let's you compile Java code to bytecode (As opposed to the JRE, Java Runtime Environment, which runs it).

It's cross platform and not a marketing buzzword at all.

Have you done this before?

c00p3r3• 17 years ago

1. cross which platform?

2. where I can get JRE for linux on ARM?

zmimon• 17 years ago

Since this uses a new bytecode on the JVM I wonder how backwards compatibility is going to be handled?

I hope we don't see a painful period where people stuck with old JDKs (Mac users, that means you) are going to be unable to use the newest versions of dynamic languages. Even just having to distribute separate binaries for pre-JDK7 runtimes will be an annoyance that people in the java community have not experienced for a long time.

New JDK 7 Feature: Support for Dynamically Typed Languages in the JVM

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