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Yay!! Java 8 is released!! My favorite parts: - invokedynamic : http://stackoverflow.com/questions/6638735/whats-invokedynamic-and-how-do-i-use-it http://stac

by suyash 13y ago

Yay!! Java 8 is released!! My favorite parts: - invokedynamic : http://stackoverflow.com/questions/6638735/whats-invokedynamic-and-how-do-i-use-it http://stackoverflow.com/questions/6638735/whats-invokedynam... - Project Nashorn : http://openjdk.java.net/projects/nashorn/ http://openjdk.java.net/projects/nashorn/ - lambda expressions : http://openjdk.java.net/projects/lambda/ http://openjdk.java.net/projects/lambda/

aardvark179 13y ago
InvokeDynamic came in with Java 7. I've got a large code base here that uses it extremely heavily and it's great, though you do need to do some careful tuning to really make it perform, and then retune when they change the implementation. :-)
acchow 13y ago
As noted in your link, invoke dynamic isn't intended to be used for Java developers - it's intended for non-Java languages running on the JVM.
- suyash 13y ago
  yes, that's the magic of it! You can run code dynamically from other languages.
hansjorg 13y ago
Nashorn is said to be high-performance, and I've looked around for benchmarks several times since it was announced, but I still can't find anything but this: https://github.com/tadas-subonis/java-nashorn-performance-sandbox https://github.com/tadas-subonis/java-nashorn-performance-sa... What gives? Wouldn't a real comparison to Rhino and V8 (at least) be interesting? Edit: strike that. Found someone who ran Octane and SunSpider and compared it to V8 and Spidermonkey: http://wnameless.wordpress.com/2013/12/10/javascript-engine-benchmarks-nashorn-vs-v8-vs-spidermonkey/ http://wnameless.wordpress.com/2013/12/10/javascript-engine-...
- eropple 13y ago
  I've been using JDK8 for a while, but no Nashorn on Android keeps me on Rhino. Which is unfortunate. Rhino's a pain.
  - suyash 13y ago
    Android doesn't use Java 8, I believe it's mostly still on Java 6.
    - eropple 13y ago
      Yes, I'm aware, thank you. There are efforts to port Nashorn back to Android.
- suyash 13y ago
  Nashorn is going to get faster with time. It is not a browser engine so don't try to compare it directly with V8 etc.
  - camus2 13y ago
    > Nashorn is going to get faster with time. It is not a browser engine so don't try to compare it directly with V8 etc. v8 is not a browser engine either ,it's a javascript engine,just like Rhino. you are mixing up Webkit with v8.
    - suyash 13y ago
      "v8 is not a browser engine either ,it's a javascript engine,just like Rhino. you are mixing up Webkit with v8." - I think you're partly correct but also confused. Webkit is a rendering engine and yes V8 is a JavaScript engine not a browser engine that was created for Chrome Browser by Google. It's used for Node.JS etc now but it's sole purpose was to make Chrome faster and that is not the same purpose of Nashorn - nashorn is a replacement for Rhino. That is what I'm trying to say.
      - 13y ago
pron 13y ago
I also like the pluggable type systems: http://docs.oracle.com/javase/tutorial/java/annotations/type_annotations.html http://docs.oracle.com/javase/tutorial/java/annotations/type...

by suyash 13y ago

aardvark179 13y ago

InvokeDynamic came in with Java 7. I've got a large code base here that uses it extremely heavily and it's great, though you do need to do some careful tuning to really make it perform, and then retune when they change the implementation. :-)

acchow 13y ago

As noted in your link, invoke dynamic isn't intended to be used for Java developers - it's intended for non-Java languages running on the JVM.

suyash 13y ago
yes, that's the magic of it! You can run code dynamically from other languages.

hansjorg 13y ago

Nashorn is said to be high-performance, and I've looked around for benchmarks several times since it was announced, but I still can't find anything but this: https://github.com/tadas-subonis/java-nashorn-performance-sandbox https://github.com/tadas-subonis/java-nashorn-performance-sa... What gives? Wouldn't a real comparison to Rhino and V8 (at least) be interesting? Edit: strike that. Found someone who ran Octane and SunSpider and compared it to V8 and Spidermonkey: http://wnameless.wordpress.com/2013/12/10/javascript-engine-benchmarks-nashorn-vs-v8-vs-spidermonkey/ http://wnameless.wordpress.com/2013/12/10/javascript-engine-...

eropple 13y ago
I've been using JDK8 for a while, but no Nashorn on Android keeps me on Rhino. Which is unfortunate. Rhino's a pain.
- suyash 13y ago
  Android doesn't use Java 8, I believe it's mostly still on Java 6.
  - eropple 13y ago
    Yes, I'm aware, thank you. There are efforts to port Nashorn back to Android.
suyash 13y ago
Nashorn is going to get faster with time. It is not a browser engine so don't try to compare it directly with V8 etc.
- camus2 13y ago
  > Nashorn is going to get faster with time. It is not a browser engine so don't try to compare it directly with V8 etc. v8 is not a browser engine either ,it's a javascript engine,just like Rhino. you are mixing up Webkit with v8.
  - suyash 13y ago
    "v8 is not a browser engine either ,it's a javascript engine,just like Rhino. you are mixing up Webkit with v8." - I think you're partly correct but also confused. Webkit is a rendering engine and yes V8 is a JavaScript engine not a browser engine that was created for Chrome Browser by Google. It's used for Node.JS etc now but it's sole purpose was to make Chrome faster and that is not the same purpose of Nashorn - nashorn is a replacement for Rhino. That is what I'm trying to say.
    - 13y ago

pron 13y ago

I also like the pluggable type systems: http://docs.oracle.com/javase/tutorial/java/annotations/type_annotations.html http://docs.oracle.com/javase/tutorial/java/annotations/type...