kotlinjvmevalmeta-inf

Problems on evaluating Kotlin inside JVM with javax.script.ScriptEngineManager

I'm trying to evaluate Kotlin code inside JVM using the Java Scripting API.

try {
    ScriptEngineManager().getEngineByExtension("kts").let {
        it.eval("val f: (CommandContext.()->Any?) = {\n${this.args.joinToString(" ")}\n}; return f") as (CommandContext.()->Any?)
    }().let { embed.setDescription(it.toString()) }
} catch (ex: Exception) {
    embed.setColor(Color.RED)
    embed.setDescription(StringWriter().also { ex.printStackTrace(PrintWriter(it)) }.toString())
}

But... ScriptEngineManager().getEngineByExtension("kts") is returning me a null value. I already added the META-INF/services file:

File Name: javax.script.ScriptEngineFactory

File Content: org.jetbrains.kotlin.script.jsr223.KotlinJsr223JvmLocalScriptEngineFactory

It sould work according to JetBrains: https://github.com/JetBrains/kotlin/tree/master/libraries/examples/kotlin-jsr223-local-example

Solution

  • I just fixed by adding

    compile 'org.jetbrains.kotlin:kotlin-compiler:1.3.11'
compile 'org.jetbrains.kotlin:kotlin-script-runtime:1.3.11'
compile 'org.jetbrains.kotlin:kotlin-script-util:1.3.11'
compile 'org.jetbrains.kotlin:kotlin-compiler-embeddable:1.3.11'

    to my build.gradle.

    PS: 1.3.11 is my Kotlin version.