Android: QtService doesn't call onDestroy after calling stopSelf

[vlada]

I have problem to close my service on Android. After calling stopSelf() in the service, the function onDestroy gets never called. I made a minimal example based on the this guide.

And I modified the code like this:
server.cpp

#include <QAndroidService>
#include <QtAndroid>
#include "rep_pingpong_source.h"

class PingPong : public PingPongSource {
public slots:
    // PingPongSource interface
    void ping(const QString &msg) override {
        emit pong(msg + " from server");
        if (msg == "Quit") {
            QtAndroid::androidService().callMethod<void>("quit");
        }
    }
};

int main(int argc, char *argv[])
{
    QAndroidService app(argc, argv);

    QRemoteObjectHost srcNode(QUrl(QStringLiteral("local:replica")));
    PingPong pingPongServer;
    srcNode.enableRemoting(&pingPongServer);

    return app.exec();
}

MyService.java

package com.kdab.training;

import android.content.Context;
import android.content.Intent;
import android.util.Log;
import org.qtproject.qt5.android.bindings.QtService;

public class MyService extends QtService
{
    public static void startMyService(Context ctx) {
        ctx.startService(new Intent(ctx, MyService.class));
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Log.d("Service Test", "Called onDestroy");
    }

    public void quit() {
        stopSelf();
    }
}

The log message is not printed so I guess the function is not called. But the process is terminated. In my case the process is not even terminated. I guess it is because some receivers ore not unregistered because the onDestroy function is not executed.