Mockito cannot mock function with UShort arguments

[pasta18]

I want to mock this function:

class MyClass() {
  fun myFunction(argument: UShort): ByteArray {
    ....
  }
}

var mocked: MyClass = mock(MyClass::class.java)
doReturn(byteArrayOf()).`when`(mocked).myFunction(any())

When run test, this error occurred.

Cannot invoke "kotlin.UShort.unbox-impl()"
java.lang.NullPointerException: Cannot invoke "kotlin.UShort.unbox-impl()"

[renannprado]

@pasta18 did you find a workaround?

[pasta18]

@renannprado
No, no workaround has been found yet.

I didn't mock it, because there was no way to mock the target method.

[renannprado]

@pasta18 this may help in your case: #445 (comment)

In my case unfortunately it didn't.