@ApplicationScoped
public class ClientOnlyService {
    public void doSomething() {
        BEANS.get(RemoteService.class).executeAction()
    }
}

MyClientSession.load() {
  // ... start job with a delay of 30 seconds
}

class MyDelayedJob implements IRunnable {
    @Override
    public void run() throws Exception {
       BEANS.get(ClientOnlyService.class).doSomething();
    }
}

@ApplicationScoped
@TunnelToServer
public class RemoteService {
   public void executeAction() {
      BEANS.get(ServerOnlyService.class).doTheWork();
   }
}

@ApplicationScoped
public class ServerOnlyService {
   public doTheWork() {
      // ...
   }
}

@ApplicationScoped
@TunnelToServer
public class RemoteService { // really implementing IRemoteService which is annotated :-)
   public void executeAction() {


      IBeanManager mgr = BEANS.getBeanManager();
      List<IBean<ServerOnlyService>> beans = mgr.getRegisteredBeans(ServerOnlyService.class);
      if (beans == null || beans.size() == 0) {
        System.err.println("--- No ServerOnlyService beans registered, trying to manually register beans");
        mgr.registerClass(ServerOnlyService.class);
      } else {
        System.out.println("--- Number of registered beans=" + beans.size());
      }

      BEANS.get(ServerOnlyService.class).doTheWork(); // now this line no longer causes an AssertionException
   }
}

@ApplicationScoped
@TunnelToServer
public interface IRemoteService {
   public void executeAction();
}

@ApplicationScoped
public class ClientOnlyService {
    public void doSomething() {
        BEANS.get(IRemoteService.class).executeAction() // this works nicely
    }
}

MyClientSession.load() {
  // ... start job with a delay of 30 seconds
}

class MyDelayedJob implements IRunnable {
    @Override
    public void run() throws Exception {
       BEANS.get(ClientOnlyService.class).doSomething(); // this works nicely
    }
}

public class RemoteService implements IRemoteService {
   public void executeAction() {

      /*
      IBeanManager mgr = BEANS.getBeanManager();
      List<IBean<ServerOnlyService>> beans = mgr.getRegisteredBeans(ServerOnlyService.class);
      if (beans == null || beans.size() == 0) {
        System.err.println("--- No ServerOnlyService beans registered, trying to manually register beans");
        mgr.registerClass(ServerOnlyService.class);
      } else {
        System.out.println("--- Number of registered beans=" + beans.size());
      }
      */


      // the next line fails if the above block is commented out, it works if the block is active
      BEANS.get(ServerOnlyService.class).doTheWork();
   }
}

@ApplicationScoped
public class ServerOnlyService {
   public doTheWork() {
      // ...
   }
}

@ApplicationScoped
public class ServerOnlyService {
   public void doTheWork() {
      System.out.println("DO THE WORK");
   }
}

public class HelloWorldService implements IHelloWorldService {

	@Override
	public HelloWorldFormData load(HelloWorldFormData input) {
		BEANS.get(ServerOnlyService.class).doTheWork(); // MODIFICATION: call the server service.
		
		StringBuilder msg = new StringBuilder();
		msg.append("Hello ").append(ServerSession.get().getUserId()).append('!');
		input.getMessage().setValue(msg.toString());
		return input;
	}
}