Convert java to kotlin breaks contextmenu

I've been converting a project to Kotlin and discovered a problem. The context menu from the java code is broken in the generated kotlin.<br/>This is a simplified test of the source from the project. It consists of only a main activity with a single layout and a context menu. The java version works but the kotlin version crashes. The only thing I can think of that is unusual is that the view I'm registering is an imageView in a RelativeLayout.

 java.lang.NullPointerException:
Parameter specified as non-null is null: 
method kotlin.jvm.internal.Intrinsics.checkNotNullParameter
, parameter menuInfo
at com...MainActivity.onCreateContextMenu(MainActivity.kt)
at android.view.View.createContextMenu(View.java:8392)
at com.android.internal.view.menu.ContextMenuBuilder
.show(ContextMenuBuilder.java:81)
at com.android.internal.policy.impl
.PhoneWindow$DecorView
.showContextMenuForChild(PhoneWindow.java:2517)
at android.view.ViewGroup.showContextMenuForChild(ViewGroup.java:658)

MainActivity.java is:

public class MainActivity extends AppCompatActivity {
private static int animationSpeed = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
registerForContextMenu(findViewById(R.id.imageView));
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.speed_select, menu);
menu.getItem(animationSpeed).setChecked(true);
}
@Override
public boolean onContextItemSelected(MenuItem item) {
int itemId = item.getItemId();
boolean rv = true;
switch(itemId) {
case R.id.animate_slow: animationSpeed = 0; break;
case R.id.animate_normal: animationSpeed = 1; break;
case R.id.animate_fast: animationSpeed = 2; break;
default: Log.d("onContextItemSelected", String.format(
"menu item unhandled:0x%08x", itemId)
);
rv = false;
}
return rv;
}
}

MainActivity.kt is:

class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
registerForContextMenu(findViewById(R.id.imageView))
}
override fun onCreateContextMenu(menu: ContextMenu, v: View,
menuInfo: ContextMenuInfo) {
super.onCreateContextMenu(menu, v, menuInfo)
val inflater = menuInflater
inflater.inflate(R.menu.speed_select, menu)
menu.getItem(animationSpeed).isChecked = true
}
override fun onContextItemSelected(item: MenuItem): Boolean {
val itemId = item.itemId
var rv = true
when (itemId) {
R.id.animate_slow -> animationSpeed = 0
R.id.animate_normal -> animationSpeed = 1
R.id.animate_fast -> animationSpeed = 2
else -> {
Log.d("onContextItemSelected", String.format(
"menu item unhandled:0x%08x", itemId))
rv = false
}
}
return rv
}
companion object {
private var animationSpeed = 0
}
}

My menu file is:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<group 
android:checkableBehavior="single"
android:id="@+id/animate_speed" >
<item android:id="@+id/animate_slow"
android:title="@string/slow" />
<item android:id="@+id/animate_normal"
android:title="@string/normal" />
<item android:id="@+id/animate_fast"
android:title="@string/fast" />
</group>
</menu>

The activity layout is:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/relative_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/imageView"
android:layout_width="250dp"
android:layout_height="250dp"
android:layout_centerInParent="true"
android:background="@drawable/andy"
/>
</RelativeLayout>

I've tried breaking in the onCreateContextMenu but never get there.<br/>
I'm using Kotlin 1.40, AndroidStudio 4.01, SDK 30, and gradle 4.01. I've been looking at the docs and the code for a couple of days now and to me, the generated kotlin looks right.<br/>Thanks!

Thanks to John Healy below this was solved.
John said he thought it might be in Kotlin's null-safety handling. I doubted so I added a log statement to the working Java code and menuInfo was coming in as a null. I added a @Nullable annotation to the Java declaration which gave me:

public void onCreateContextMenu(
ContextMenu menu, View v,
@Nullable ContextMenu.ContextMenuInfo menuInfo)

Testing of the Java code showed the compiler and lint were happy and the code still ran. I again ran the jave through the conversion process and the resulting kotlin signature for the function is:

override fun onCreateContextMenu(
menu: ContextMenu, v: View,
menuInfo: ContextMenuInfo?)

I tested the Kotlin and it now works too!

NOTE: for your edification and amusement I posted the source on
git hub.

I'm only puting up this reply to my question so people will notice a solution was found thanks to a commentor. This fix only applies if you are using a menu list rather than creating individual menu items and the fix is only necessary for Kotlin because of the way in which Kotlin handles null-safety. Please look at the end of the question and at my comment to that question,
<br>Steve S.