目前，在GraalVM之外没有可用的预先构建的Graal.js jar。要在其他JDK上运行它，可以从GraalVM中提取jar或按以下方式构建它：
$ git clone git@github.com:graalvm/graaljs.git$ git clone git@github.com:graalvm/mx.git$ export PATH=$PWD/mx:$PATH$ export JAVA_HOME=/usr/java/jdk1.8.0_161$ cd graaljs/graal-js$ mx build
请注意，它可以用JDK 8很好地构建。它也可以在JDK 8上运行：
$ mx js> typeof([] + 1)string>
外壳程序有效，
Ctrl+
D退出。
-v前一个命令行中的选项显示了如何启动它：
$ mx -v js...env JAVA_HOME=/usr/java/jdk1.8.0_161 ... /usr/java/jdk1.8.0_161/bin/java -d64 -cp /tmp/graal-js/graal/sdk/mxbuild/dists/graal-sdk.jar:/tmp/graal-js/graal/truffle/mxbuild/dists/truffle-api.jar:/tmp/graal-js/graal/tools/mxbuild/dists/truffle-profiler.jar:/tmp/graal-js/graal/tools/mxbuild/dists/chromeinspector.jar:/tmp/graal-js/graal/sdk/mxbuild/dists/launcher-common.jar:/tmp/graal-js/graaljs/graal-js/mxbuild/dists/graaljs-launcher.jar:/tmp/graal-js/graal/regex/mxbuild/dists/tregex.jar:/home/gmdubosc/.mx/cache/ASM_DEBUG_ALL_702b8525fcf81454235e5e2fa2a35f15ffc0ec7e.jar:/home/gmdubosc/.mx/cache/ICU4J_6f06e820cf4c8968bbbaae66ae0b33f6a256b57f.jar:/tmp/graal-js/graaljs/graal-js/mxbuild/dists/graaljs.jar -Dtruffle.js.BindProgramResult=false -Xms2g -Xmx2g -Xss16m com.oracle.truffle.js.shell.JSLauncher
因此，它将这些罐子放在类路径中：
/tmp/graal-js/graal/sdk/mxbuild/dists/graal-sdk.jar
/tmp/graal-js/graal/truffle/mxbuild/dists/truffle-api.jar
/tmp/graal-js/graal/tools/mxbuild/dists/truffle-profiler.jar
/tmp/graal-js/graal/tools/mxbuild/dists/chromeinspector.jar
/tmp/graal-js/graal/sdk/mxbuild/dists/launcher-common.jar
/tmp/graal-js/graaljs/graal-js/mxbuild/dists/graaljs-launcher.jar
/tmp/graal-js/graal/regex/mxbuild/dists/tregex.jar
/home/gmdubosc/.mx/cache/ASM_DEBUG_ALL_702b8525fcf81454235e5e2fa2a35f15ffc0ec7e.jar
/home/gmdubosc/.mx/cache/ICU4J_6f06e820cf4c8968bbbaae66ae0b33f6a256b57f.jar
/tmp/graal-js/graaljs/graal-js/mxbuild/dists/graaljs.jar
查看构建工件，我们还可以看到
mxbuild/dists/graaljs-scriptengine.jar哪个负责向脚本引擎API注册Graal.js。
使用一个小的测试文件：
import javax.script.*;import java.util.Arrays;public class Test { public static void main(String... args) throws scriptException { scriptEngineManager manager = new scriptEngineManager(); for (scriptEngineFactory factory : manager.getEngineFactories()) { System.out.printf("%s %s: %s %s%n", factory.getLanguageName(), factory.getLanguageVersion(), factory.getEngineName(), factory.getNames()); } scriptEngine engine = manager.getEngineByName("Graal.js"); if (engine != null) { Object result = engine.eval("typeof([] + 1)"); System.out.println(result); } }}在库存JDK 8上进行编译和运行可以得到：
$ javac Test.java$ java -cp . TestECMAscript ECMA - 262 Edition 5.1: Oracle Nashorn [nashorn, Nashorn, js, JS, Javascript, javascript, ECMAscript, ecmascript]
现在在类路径上使用Graal.js：
$ java -cp /tmp/graal-js/graal/sdk/mxbuild/dists/graal-sdk.jar:/tmp/graal-js/graal/truffle/mxbuild/dists/truffle-api.jar:/tmp/graal-js/graal/regex/mxbuild/dists/tregex.jar:/home/gmdubosc/.mx/cache/ASM_DEBUG_ALL_702b8525fcf81454235e5e2fa2a35f15ffc0ec7e.jar:/home/gmdubosc/.mx/cache/ICU4J_6f06e820cf4c8968bbbaae66ae0b33f6a256b57f.jar:/tmp/graal-js/graaljs/graal-js/mxbuild/dists/graaljs.jar:/tmp/graal-js/graaljs/graal-js/mxbuild/dists/graaljs-scriptengine.jar:. TestECMAscript ECMA - 262 Edition 6: Graal.js [Graal.js, graal.js, Graal-js, graal-js, Graal.JS, Graal-JS, GraalJS, GraalJSPolyglot, js, JS, Javascript, javascript, ECMAscript, ecmascript]ECMAscript ECMA - 262 Edition 5.1: Oracle Nashorn [nashorn, Nashorn, null, null, null, null, null, null]string
（请注意，此命令行忽略
truffle-profiler，
chromeinspector，
launcher-common和
graaljs-launcher其中通过脚本引擎使用Graal.js时不是必需的。）
由于标准JDK 8不支持JVMCI和/或Graal编译器，因此将没有用于JS的JIT编译，因此不要对性能抱有太大期望。为了获得性能，您需要特殊的JDK
8或JDK 9+以及Graal-Truffle绑定。
