I'm looking for a browser that uses the Nashorn engine (article) instead of SpiderMonkey or V8, etc. Do any browsers use this engine yet?

  • There probably isn't one, since it's not intended to be run in a browser.
    – Flimzy
    Apr 24 '15 at 15:23

Sort of

In gngr we are using rhino as the engine. Rhino is a close cousin of Nashorn. If you only need Nashorn, it might be conceivable to switch the engines with some effort.

The reason we are using Rhino is:

  • We don't yet have the resources to port to Nashorn.
  • We might want to support Java 7 in the future.
  • Having the JS engine as a separate Jar helps sandboxing it. (If Nashorn is loaded by the system class loader, as I suspect it is, it won't be possible to sandbox it).
  • Nashorn seems to add some bindings to the global scope with no way to turn it off. (This is from vague memory; I had brought this up on the Nashorn mailing list about an year back and was told that this behavior won't be changed).
  • You have lots of questions :) Thanks for looking into it. Would be happy to answer. On IRC we are at #gngr on freenode, and /r/gngr on Reddit. Reddit would be best for this discussion.
    – HRJ
    Aug 12 '15 at 20:33

Not Likely

While there could conceivably be a web browser using Nashorn as its JavaScript/ECMAScript engine, that is not likely. Such usage is not the purpose of Nashorn.

Instead, Nashorn is aimed at these two purposes:

  • Embedding JavaScript within a Java app.
    Sometimes a Java app wants to run some code or library written in JavaScript.
  • Develop standalone JavaScript apps to run on the Java Virtual Machine (JVM).
  • 1
    But what if there is a java app which is also a browser :) See my answer.
    – HRJ
    Aug 5 '15 at 3:44

Web-K is a basic web view which integrates Flying Saucer as a renderer, JSoup as parser and Nashorn as JS runtime with basic DOM-related features.

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