Exception on child class has protected @Selector method

Bug
1

Hello, I see exception when I try to override protected(or package-private) method annotated with @Selector
Actually that method works nice. If I make it public there is no exception.
So, the Exception:

java.lang.NoSuchMethodException: handleTap []
	at java.lang.Class.getMethod(Class.java:669)
	at java.lang.Class.getMethod(Class.java:648)
	at org.moe.natj.objc.ObjCSelectorsFinder.getMethodsWithSelectorsForClass(ObjCSelectorsFinder.java:72)
	at org.moe.natj.objc.ObjCSelectorsFinder.prepareParentsSelectorsList(ObjCSelectorsFinder.java:42)
	at org.moe.natj.objc.ObjCRuntime.registerClass(Native Method)
	at org.moe.natj.objc.ObjCRuntime.doRegistration(ObjCRuntime.java:73)
	at org.moe.natj.general.NatJ.register(NatJ.java:265)
	at delightex.testhttp.MoeRecognizerEventHandler$MyMoeRecognizerEventHandler.<clinit>(MoeRecognizerEventHandler.java)
	at delightex.testhttp.Main.applicationDidFinishLaunchingWithOptions(Main.java:60)
	at ios.uikit.c.UIKit.UIApplicationMain(Native Method)
	at delightex.testhttp.Main.main(Main.java:32)
Did not found method:handleTap For class:MyMoeRecognizerEventHandler

And my code:

package delightex.testhttp;

import ios.NSObject;
import ios.uikit.UITapGestureRecognizer;
import ios.uikit.UIView;
import ios.uikit.protocol.UIGestureRecognizerDelegate;
import org.moe.natj.general.Pointer;
import org.moe.natj.objc.SEL;
import org.moe.natj.objc.ann.Selector;

public class MoeRecognizerEventHandler extends NSObject implements UIGestureRecognizerDelegate {

  public static final String HANDLE_TAP = "handleTap";

  public final UITapGestureRecognizer singleTapRecognizer = UITapGestureRecognizer.alloc().init();

  protected MoeRecognizerEventHandler(Pointer peer) {
    super(peer);
  }

  @Selector("alloc")
  public static native MoeRecognizerEventHandler alloc();

  @Selector("init")
  public native MoeRecognizerEventHandler init();


  public void myInit(UIView view) {
    singleTapRecognizer.setNumberOfTapsRequired(1);
    singleTapRecognizer.addTargetAction(this, new SEL(HANDLE_TAP));
    singleTapRecognizer.setDelegate(this);

    view.addGestureRecognizer(singleTapRecognizer);
  }
  @Selector(value = HANDLE_TAP)
  protected void handleTap() {
    System.out.println("parent: handleTap");
  }

  public static class MyMoeRecognizerEventHandler extends MoeRecognizerEventHandler {

    protected MyMoeRecognizerEventHandler(Pointer peer) {
      super(peer);
    }

    @Selector("alloc")
    public static native MyMoeRecognizerEventHandler alloc();

    @Selector("init")
    public native MyMoeRecognizerEventHandler init();

    protected void handleTap() {
      System.out.println("child: handleTap");
    }
  }
}

usage:

UiView view = getMyView();
MoeRecognizerEventHandler.MyMoeRecognizerEventHandler.alloc().init().myInit(view);
2

Dear zufarfakhurtdinov,

in Objective-C there are no such things as protected or private methods, from the runtime’s point of view, everything is just method. Because of this, you should only put selectors on public methods. Selectors on private / protected methods are partially functional: they can be called, but annotation inheritance does not work. It needs further discussion / design how to properly handle these methods.

We created a new issue for this: https://github.com/multi-os-engine/multi-os-engine/issues/41

3

What are these issues with annotation inheritance with protected methods ?