Unable to create javax script engine for javascript in Javafx application - Stack Overflow

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I am using NetBeans 12.0. and windows 10 64 bit.My JDK is 15.0.2 and JavaFx SDK 16. When I try to build my javafx application it shows the following build error:

C:\Users\musta\OneDrive\Documents\NetBeansProjects\JavafxTry\nbproject\jfx-impl.xml:1251: The following error occurred while executing this line: C:\Users\musta\OneDrive\Documents\NetBeansProjects\JavafxTry\nbproject\jfx-impl.xml:1259: Unable to create javax script engine for javascript

BUILD FAILED (total time: 3 seconds)

I am using NetBeans 12.0. and windows 10 64 bit.My JDK is 15.0.2 and JavaFx SDK 16. When I try to build my javafx application it shows the following build error:

C:\Users\musta\OneDrive\Documents\NetBeansProjects\JavafxTry\nbproject\jfx-impl.xml:1251: The following error occurred while executing this line: C:\Users\musta\OneDrive\Documents\NetBeansProjects\JavafxTry\nbproject\jfx-impl.xml:1259: Unable to create javax script engine for javascript

BUILD FAILED (total time: 3 seconds)

• javascript
• javafx
• build

Share Improve this question Follow asked Apr 6, 2021 at 6:07 Mustafa IramMustafa Iram 4111 gold badge11 silver badge22 bronze badges

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2 Answers 2

Sorted by: Reset to default 2

The Nashorn JavaScript Engine has been removed in Java 15: https://openjdk.java/jeps/372

The javascript engine used to be included in the JVM but it has been removed in Java 15.

As an alternative you can use Groovy instead. Groovy looks similar to javascript. Your javascript should be easy to port to Groovy.

When you use the 'groovy-all jar', the script tag looks something like:

<taskdef name="groovy" classname="org.codehaus.groovy.ant.Groovy" classpath="path/to/groovy-all-2.4.21.jar" />
<groovy>
    // your Groovy script
</groovy>

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