Nashorn (JavaScript engine): Difference between revisions

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{{Short description|JavaScript engine developed in Java}}

{{Multiple issues|

{{more citations needed|date=July 2021}}

{{primary sources|date=July 2021}}

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{{Infobox software

| name = Nashorn

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| screenshot =

| caption =

| developer = [[Oracle Corporation]], OpenJDK Community

| latest release dateversion = =15.7

| status = Active

| latest release versiondate = {{Start date and age|2025|08|21}}

| latest release date =

| latest preview version =

| latest preview date =

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| programming language = [[Java (programming language)|Java]]

| genre = [[JavaScript engine]]

| license = [[GNU General Public License | GPL]] with a linking exception

| website =

}}

'''Nashorn''' is a [[JavaScript engine]] developed in the [[Java (programming language)|Java]] programming language originally by [[Oracle Corporation|Oracle]] and later by the OpenJDK Community. It isrelies basedon the support for dynamically typed languages on the Java Platform (JSR 292) (a concept first realized in the experimental [[Da Vinci Machine]] (JSRand 292)a standard part of Java 7 and haslater.) Nashorn beenwas releasedincluded with [[Java 8]] through JDK 14.<ref>{{cite web

| url=http://www.wiki.jvmlangsummit.com/images/c/ce/Nashorn.pdf

| title=Adventures in JSR-292 or How To Be A Duck Without Really Trying

| date=July 2011

| last=Laskey
| first=James

| publisher=[[Oracle Corporation]]

| access-date=2011-07-24

| accessdate=2011-07-24}}</ref><ref>{{cite web |url=http://mail.openjdk.java.net/pipermail/jdk8-dev/2013-April/002336.html |title=Proposed new schedule for Java 8 |date=2013-04-18 |accessdate=2013-04-19}}</ref><ref>{{cite web |url=http://openjdk.java.net/projects/jdk8/ |title=JDK 8 |publisher=OpenJDK |date=2013-04-18 |accessdate=2013-04-19}}</ref>

| archive-url=https://web.archive.org/web/20160603132421/http://wiki.jvmlangsummit.com/images/c/ce/Nashorn.pdf

| archive-date=2016-06-03

| url-status=dead

| accessdate=2011-07-24}}</ref><ref>{{cite web |url=http://mail.openjdk.java.net/pipermail/jdk8-dev/2013-April/002336.html |title=Proposed new schedule for Java 8 |date=2013-04-18 |accessdateaccess-date=2013-04-19}}</ref><ref>{{cite web |url=http://openjdk.java.net/projects/jdk8/ |title=JDK 8 |publisher=OpenJDK |date=2013-04-18 |accessdateaccess-date=2013-04-19}}</ref>

== History ==

The project was announced first at the JVM language summit in July 2011,<ref>{{cite web

| url=http://openjdk.java.net/projects/mlvm/jvmlangsummit/agenda.html

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| date=July 2011

| publisher=[[Oracle Corporation]]

| accessdateaccess-date=2011-07-24}}</ref><ref>{{cite web

| archive-date=2011-08-19

| archive-url=https://web.archive.org/web/20110819110827/http://openjdk.java.net/projects/mlvm/jvmlangsummit/agenda.html

| url-status=dead

}}</ref><ref>{{cite web

| url=http://www.wiki.jvmlangsummit.com/images/2/27/JVMLS_GES.pdf

| title=JVM Language Summit: Moving Java Forward, aka ‘Pointy'Pointy haired manager talk’talk'

| last=Saab
| first=Georges

| date=2011-07-19

| publisher=[[Oracle Corporation]]

| access-date=2011-07-24

| accessdate=2011-07-24}}</ref> and then confirmed at [[JavaOne]] in October 2011.<ref>{{cite web

| archive-url=https://web.archive.org/web/20120423215424/http://wiki.jvmlangsummit.com/images/2/27/JVMLS_GES.pdf

| archive-date=2012-04-23

| url-status=dead

| accessdate=2011-07-24}}</ref> and then confirmed at [[JavaOne]] in October 2011.<ref>{{cite web

| url=http://www.infoworld.com/d/application-development/oracle-prepping-its-nashorn-javascript-engine-175159

| title=Oracle prepping its Nashorn JavaScript engine

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| date=2011-10-05

| publisher=[[InfoWorld]]

| accessdateaccess-date=2011-10-08}}</ref>

On November 21, 2012, Oracle formally announced the [[open sourcing]] of the Nashorn source on the [[OpenJDK]] repository. The project aim will be to allow embedding JavaScript in Java applications via [[Scripting for the Java Platform|JSR-223]] and to develop standalone JavaScript applications.<ref>{{cite web

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| publisher=[[Oracle Corporation]]

| quote=''I hereby propose the creation of the Nashorn Project with Jim Laskey as the Lead and HotSpot group as the sponsoring Group. In accordance with the OpenJDK guidelines [1], we would like to start a new project to implement a lightweight high-performance JavaScript runtime in Java with a native JVM''

| accessdateaccess-date=2012-11-24}}</ref> On December 21, 2012, Oracle announced Nashorn source was publicly released in the [[OpenJDK]] repository.<ref>{{cite web

| url=https://blogs.oracle.com/nashorn/entry/open_for_business

| title=Open for business

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| date=2012-12-21

| publisher=[[Oracle Corporation]]

| accessdateaccess-date=2012-12-21}}</ref>

It provides a 100% support of [[ECMAScript]] 5.1.<ref>{{Cite web|url=https://docs.oracle.com/en/java/javase/12/docs/api/jdk.scripting.nashorn/module-summary.html|title = Java Platform, Standard Edition Java API Reference}}</ref> It was the first JavaScript implementation to achieve 100% pass rate on the ECMAScript 5.1 test suite.<ref>{{Cite web|url=https://twitter.com/asz/status/258995374847565825|title = Tweet showing all ECMAScript 5.1 tests passing on the screen of a Nashorn developers' computer}}</ref>

With the release of Java 11, Nashorn is deprecated, and will likely be removed from the JDK at a later time.<ref>{{cite web

With the release of Java 11, Nashorn iswas deprecated citing challenges to maintenance, and willhas likely bebeen removed from the JDK at a later15 timeonwards.<ref>{{cite web

| url=http://openjdk.java.net/jeps/335

| title=JEP 335: Deprecate the Nashorn JavaScript Engine

| date=2017-07-17

| access-date=2018-09-25}}</ref><ref>{{cite web |url=https://openjdk.java.net/jeps/372 |title=JEP 372: Remove the Nashorn JavaScript Engine |date=2020-01-10 |access-date=2020-07-22}}</ref>

| accessdate=2018-09-25}}</ref> The [[GraalVM]] was suggested as a workaround.

Nashorn development [https://github.com/openjdk/nashorn continues on GitHub] as a standalone [https://openjdk.java.net/projects/nashorn/ OpenJDK project] and the [https://mvnrepository.com/artifact/org.openjdk.nashorn/nashorn-core separate release] can be used in Java projects from Java 11 and up.

==Name==

[[wikt:Nashorn|''Nashorn'']] {{IPA-|de|ˈnaːsˌhɔɐ̯n|}} ("nahss-horn") is the German translation of [[rhinoceros]], a play on words on [[Rhino (JavaScript engine)|Rhino]], the name of a JavaScript engine implemented in Java and provided by [[Mozilla Foundation]]. The latter gets its name from the animal on the cover of the JavaScript book from [[O'Reilly Media]].<ref>{{cite web |url=http://www.oreilly.com/catalog/jscript5/ |title=JavaScript: The Definitive Guide, 5th Edition |publisher=O'Reilly Media, Inc |accessdateaccess-date=2012-01-31}}</ref>

== Performance ==

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| date=2014-12-12

| publisher=[[Oracle Corporation]]

| accessdateaccess-date=2015-09-06}}</ref>

==See also==

{{Portal|Free and open-source software}}

*[[List of ECMAScript engines]]

*[[List of JVM languages]]

==References==

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==External links==

*{{OfficialURL|2=GitHub project page website|blogs.oraclehttps://github.com/openjdk/nashorn/}}

*{{URL|2=Oracle blog (mostly defunct)|https://blogs.oracle.com/nashorn/}}

*[https://www.graalvm.org/ GraalVM]

*[https://docs.oracle.com/javase/8/docs/technotes/guides/scripting/ Scripting for the Java Platform]

{{ECMAScript}}

{{Oracle FOSS}}

[[Category:JVM programming languages]]

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[[Category:Cross-platform software]]

[[Category:Software using the GPL linking exception]]

[[Category:Oracle software]]