Code folding - getPlaceholderText not executing?

Hi everyone,

I was able to implement a FoldingBuilderEx class, and it works pretty well. I am specifically trying to code fold annotations that have lots of values. This works really well when the annotation is "on top" like this:

(before folding)

@NetworkAnnotation(
        retentionTime = "",
        destination = "",
        purposeDescription = "Heya how is it going",
        encryptedInTransmission = false)
final com.android.volley.Request<Object> add = queue.add(null)

(after folding)

@NetworkAnnotation ("Heya how is it going")
final com.android.volley.Request<Object> add = queue.add(null)

However, if the annotation is embedded in a method to annotate its parameters, like below:

manager.requestLocationUpdates(
        LocationManager.GPS_PROVIDER,
        0,
        0,
        new LocationListener() {
            @Override
            public void onLocationChanged(
                    @LocationAnnotation(
                            purpose={LocationPurpose.provide_location_based_content},
                            purposeDescription={"Provide location-based weather information"},
                            visibility={Visibility.WHILE_IN_USE},
                            frequency={"When the app is open"},
                            dataType={LocationDataType.FINE_GRAINED_LATITUDE_LONGITUDE}
                    )
                    Location location) {

            }

Then the LocationAnnotation does not fold correctly. Instead it folds to this: @{ ... } and the getPlaceholderText method in the FoldingDescriptor I create is never even called.

Any help is greatly appreciated. Thanks!