Kotlin genereert Java 17 code.

Kotlin/build.gradle.kts

@@ -25,5 +25,5 @@ tasks.test {
 
 // config JVM target to 1.8 for kotlin compilation tasks
 tasks.withType<KotlinCompile>().configureEach {
-	kotlinOptions.jvmTarget = "1.8"
+	kotlinOptions.jvmTarget = "17"
 }

Kotlin/src/test/kotlin/com/gildedrose/GildedRoseTest.kt

@@ -10,7 +10,7 @@ internal class GildedRoseTest {
         val items = arrayOf<Item>(Item("foo", 0, 0))
         val app = GildedRose(items)
         app.updateQuality()
-        assertEquals("fixme", app.items[0].name)
+        assertEquals("foo", app.items[0].name)
 
     }