Any ideas of what might be causing this? This is a...

# announcements

[mpcjanssen]

Any ideas of what might be causing this? This is a mixed Java/Kotlin project for android. A comparator is defined in kotlin and called from Java

java.lang.NoSuchMethodError: No interface method reversed()Ljava/util/Comparator; in class Ljava/util/Comparator; or its super classes (declaration of 'java.util.Comparator' appears in /system/framework/core-libart.jar)