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copied!<p>I've done some more digging around and you can get Nashorn working with JDK7 by using a backport of it located here:</p> <p><a href="https://bitbucket.org/ramonza/nashorn-backport">https://bitbucket.org/ramonza/nashorn-backport</a></p> <p>Checkout that repository and attempt to build it using <code>ant -f make/build.xml</code> as described on the BitBucket page</p> <p>Apply the patch listed in the issues section <a href="https://bitbucket.org/ramonza/nashorn-backport/issue/1/update-to-dynalink-05">here</a> if you get a failed build due to dynalink (I assume it will be patched into the main repository soon by the developer).</p> <p>Upon building it you should get a nashorn.jar file inside the dist folder of your cloned repository.</p> <p>Now you need to add this jar to your bootclasspath using a VM option similar to this:</p> <p><code>-Xbootclasspath/a:C:/nashorn-backport/dist/nashorn.jar</code></p> <p>And now you should be able to use nashorn. To make sure here's a quick test program I wrote that will list out the available engine factories:</p> <pre><code>import javax.script.*; public class NashornTest { public static void main(String args[]) { ScriptEngineManager manager = new ScriptEngineManager(); for (ScriptEngineFactory f : manager.getEngineFactories()) { printBasicInfo(f); System.out.println(); } } public static void printBasicInfo(ScriptEngineFactory factory) { System.out.println("engine name=" + factory.getEngineName()); System.out.println("engine version=" + factory.getEngineVersion()); System.out.println("language name=" + factory.getLanguageName()); System.out.println("extensions=" + factory.getExtensions()); System.out.println("language version=" + factory.getLanguageVersion()); System.out.println("names=" + factory.getNames()); System.out.println("mime types=" + factory.getMimeTypes()); } } </code></pre> <p>Running that with the bootclasspath set will list Rhino and Nashorn, without it you will only see Rhino.</p>

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