Javascript Validation in Java 15+ JUnit Test

Question

Now that Nashorn has been deprecated & removed in JDK 15 what is the best approach to validate that a String is valid Javascript in a JUnit test?

Previous Code:

    private void validateJavascript(final String js) throws ScriptException {
        final NashornScriptEngine scriptEngine = (NashornScriptEngine) new NashornScriptEngineFactory().getScriptEngine();
        final CompiledScript compile = scriptEngine.compile(js);
    }

Thanks @tgdavies just found that thread as well and managed to solve this by adding that standalone implementation. — Patrick Bray, Dec 17 '21 at 02:24
I found that via your answer, but I think closing as duplicate is more helpful to SO generally. — tgdavies, Dec 17 '21 at 02:26

Patrick Bray · Answer 1 · 2021-12-17T02:41:54.693

1

Found the following similar thread Different Nashorn engine for Java < 15 and >= 15? which pointed me to standalone implementation which can be added as a test dependency:

testImplementation 'org.openjdk.nashorn:nashorn-core:15.2'

And then instantiated as follows:

final NashornScriptEngine scriptEngine = (NashornScriptEngine) new NashornScriptEngineFactory().getScriptEngine();

edited Dec 17 '21 at 02:41

answered Dec 17 '21 at 02:21

Patrick Bray

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Javascript Validation in Java 15+ JUnit Test

1 Answers1