JEP 276: Dynamic Linking of Language-Defined Object Models (original) (raw)

Attila Szegedi attila.szegedi at oracle.com
Thu Oct 22 16:22:30 UTC 2015

Folks,

here’s some updates on this JEP, mostly making the code and docs available to the community for evaluation.

Where’s the code?

The JDK 9 sandbox repo now has a branch named “JEP-276-branch” where the work is ongoing. If you aren’t familiar with the JDK 9 sandbox, you can read all about it here: <http://cr.openjdk.java.net/~chegar/docs/sandbox.html>

If you clone this repo, the source code is in nashorn/src/jdk.dynalink directory. (It being in the nashorn subrepo is not necessarily final, we just peeled it off of Nashorn in the first step.)

How to get the docs?

Again, go to nashorn/make and issue "ant dynalinkapi". You'll get the docs in nashorn/dist/javadoc directory. They should be quite comprehensive. For your convenience I also uploaded the docs to <http://cr.openjdk.java.net/~attila/jep276/javadoc.20151022/>

How to get a binary?

If you go to nashorn/make directory and issue "ant jar" you’ll get a JAR file in nashorn/dist/nashorn.jar that includes the Dynalink classes. Again, they're colocated with Nashorn for the time being, but you can use Dynalink and ignore Nashorn. (There's no dependencies from Dynalink to Nashorn, mind you, they just share the JAR file at the moment.)

You can use the latest Early Access Release of JDK9 from <https://jdk9.java.net/download/> and launch the JVM with nashorn.jar prepended to boot class path with "-Xbootclasspath/p:" option.

Mind you, we haven't gotten to updating the makefiles yet, so at the time of this writing an attempt to build a full JDK from the branch will fail. That's why I'm suggesting you take the EA build and add the nashorn.jar to its boot class path.

That's all for now - give it a try and I'll be happy to hear your feedback. I will be at JavaOne in San Francisco next week; if you happen to be around, get in touch and I would be happy to discuss it in person too.

Thanks, Attila.

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