Can't bind to engine

[npedot]

import org.junit.Test
import javax.script.ScriptEngineManager
import kotlin.test.assertEquals

class ScriptTest {

@Test
fun testSimpleEval() {
    val engine = ScriptEngineManager().getEngineByExtension("kts")!!
    val res = engine.eval("2+4")
    assertEquals(6,res)
}

@Test
fun testSimpleBinding() {
    val engine = ScriptEngineManager().getEngineByExtension("kts")!!
    engine.put("hello","world")
    val res = engine.eval("hello")
    assertEquals("world",res)
}

}

I've got

javax.script.ScriptException: Unresolved reference: hello
at org.jetbrains.kotlin.cli.common.repl.KotlinJsr223JvmScriptEngineBase.compileAndEval(KotlinJsr223JvmScriptEngineBase.kt:65)
at org.jetbrains.kotlin.cli.common.repl.KotlinJsr223JvmScriptEngineBase.eval(KotlinJsr223JvmScriptEngineBase.kt:31)

[Ilya Chernikov]

What version of the Kotlin libs you're yousing?
Have you tried the examples and tests from this repo 1:1? There is a test - https://github.com/Kotlin/kotlin-script-examples/blob/master/jvm/jsr223/jsr223-simple/src/test/kotlin/org/jetbrains/kotlin/script/examples/jvm/jsr223/simple/test/simpleJsr223Test.kt#L29 - with exactly this functionality here, and it works for me.