Moshi Custom Adapter - IllegalArgumentException: Conflicting @FromJson methods: after gradle version raised to 5.6.4 and plugin to 3.6.0

I had raised gradle version to 5.6.4 and Android Gradle plugin to 3.6.0.

I have these methods in my custom Moshi adapter:

@proguard.annotation.Keep
public static class CustomAdapters {

    @FromJson
    @NullToNone
    public double fromJsonDouble(@NonNull final JsonReader reader) throws IOException {
        if (reader.peek() == JsonReader.Token.NUMBER) {
            return reader.nextDouble();
        } else if (reader.peek() == JsonReader.Token.NULL) {
            reader.nextNull();
        }

        return NullToNone.NONE_DOUBLE;
    }

    @FromJson
    @SkipEmpty
    public double fromJsonEmptyDouble(@NonNull final JsonReader reader) throws IOException {
        return reader.nextDouble();
    }
}

     I am getting this exception. Any clue ?

  Caused by: java.lang.IllegalArgumentException: Conflicting @FromJson methods:
        public double net.abc.android.epclient.utils.MoshiFactory$CustomAdapters.fromJsonDouble(com.squareup.moshi.JsonReader) throws java.io.IOException
        public double net.abc.android.epclient.utils.MoshiFactory$CustomAdapters.fromJsonEmptyDouble(com.squareup.moshi.JsonReader) throws java.io.IOException
        at tb2$a.b(Moshi.java:42)
        at m23.a(MoshiProvider.kt:4)
        at h73.get(WebServiceModule_ProvidesMoshiFactory.java:5)

from Moshi Custom Adapter - IllegalArgumentException: Conflicting @FromJson methods: after gradle version raised to 5.6.4 and plugin to 3.6.0