Program: 10460
Project: 10460
Buggy source:
public PhotoMapViewController(){
  setTitle("String_Node_Str");
  getNavigationItem().setRightBarButtonItem(new UIBarButtonItem("String_Node_Str",UIBarButtonItemStyle.Plain,new UIBarButtonItem.OnClickListener(){
    @Override public void onClick(    UIBarButtonItem barButtonItem){
      zoomToCherryLake();
    }
  }
));
  photosViewController=new PhotosViewController();
  allAnnotationsMapView=new MKMapView(CGRect.Zero());
  mapView=new MKMapView(getView().getBounds());
  mapView.setDelegate(new MKMapViewDelegateAdapter(){
    @Override public void didChangeRegion(    MKMapView mapView,    boolean animated){
      updateVisibleAnnotations();
    }
    @Override public void didAddAnnotationViews(    MKMapView mapView,    NSArray<MKAnnotationView> views){
      for (      MKAnnotationView annotationView : views) {
        if (!(annotationView.getAnnotation() instanceof PhotoAnnotation)) {
          continue;
        }
        final PhotoAnnotation annotation=(PhotoAnnotation)annotationView.getAnnotation();
        if (annotation.getClusterAnnotation() != null) {
          final CLLocationCoordinate2D actualCoordinate=annotation.getCoordinate();
          CLLocationCoordinate2D containerCoordinate=annotation.getClusterAnnotation().getCoordinate();
          annotation.setClusterAnnotation(null);
          annotation.setCoordinate(containerCoordinate);
          UIView.animate(0.3,new Runnable(){
            @Override public void run(){
              annotation.setCoordinate(actualCoordinate);
            }
          }
);
        }
      }
    }
    @Override public MKAnnotationView getAnnotationView(    MKMapView mapView,    MKAnnotation annotation){
      final String annotationIdentifier="String_Node_Str";
      if (mapView != PhotoMapViewController.this.mapView) {
        return null;
      }
      if (annotation instanceof PhotoAnnotation) {
        MKPinAnnotationView annotationView=(MKPinAnnotationView)mapView.dequeueReusableAnnotationView(annotationIdentifier);
        if (annotationView == null) {
          annotationView=new MKPinAnnotationView();
          annotationView.setAnnotation(annotation);
          annotationView.setCanShowCallout(true);
          annotationView.setPinColor(MKPinAnnotationColor.Red);
          annotationView.setAnimatesDrop(true);
          UIButton disclosureButton=UIButton.create(UIButtonType.DetailDisclosure);
          annotationView.setRightCalloutAccessoryView(disclosureButton);
        }
 else {
          annotationView.setAnnotation(annotation);
        }
        return annotationView;
      }
      return null;
    }
    /** 
 * User tapped the call out accessory 'i' button.
 * @param mapView
 * @param view
 * @param control 
 */
    @Override public void calloutAccessoryControlTapped(    MKMapView mapView,    MKAnnotationView view,    UIControl control){
      PhotoAnnotation annotation=(PhotoAnnotation)view.getAnnotation();
      List<PhotoAnnotation> photosToShow=new ArrayList<>();
      photosToShow.add(annotation);
      photosToShow.addAll(annotation.getContainedAnnotations());
      photosViewController.setPhotosToShow(photosToShow);
      getNavigationController().pushViewController(photosViewController,true);
    }
    @Override public void didSelectAnnotationView(    MKMapView mapView,    MKAnnotationView view){
      if (view.getAnnotation() instanceof PhotoAnnotation) {
        PhotoAnnotation annotation=(PhotoAnnotation)view.getAnnotation();
        annotation.updateSubtitleIfNeeded();
      }
    }
  }
);
  getView().addSubview(mapView);
  MKCoordinateRegion newRegion=new MKCoordinateRegion(CherryLakeLocation,new MKCoordinateSpan(5.0,5.0));
  mapView.setRegion(newRegion);
  populateWorldWithAllPhotoAnnotations();
}

Fixed version (ground truth):
public PhotoMapViewController(){
  setTitle("String_Node_Str");
  getNavigationItem().setRightBarButtonItem(new UIBarButtonItem("String_Node_Str",UIBarButtonItemStyle.Plain,new UIBarButtonItem.OnClickListener(){
    @Override public void onClick(    UIBarButtonItem barButtonItem){
      zoomToCherryLake();
    }
  }
));
  photosViewController=new PhotosViewController();
  allAnnotationsMapView=new MKMapView(CGRect.Zero());
  mapView=new MKMapView(getView().getBounds());
  mapView.setDelegate(new MKMapViewDelegateAdapter(){
    @Override public void didChangeRegion(    MKMapView mapView,    boolean animated){
      updateVisibleAnnotations();
    }
    @Override public void didAddAnnotationViews(    MKMapView mapView,    NSArray<MKAnnotationView> views){
      for (      MKAnnotationView annotationView : views) {
        if (!(annotationView.getAnnotation() instanceof PhotoAnnotation)) {
          continue;
        }
        final PhotoAnnotation annotation=(PhotoAnnotation)annotationView.getAnnotation();
        if (annotation.getClusterAnnotation() != null) {
          final CLLocationCoordinate2D actualCoordinate=annotation.getCoordinate();
          CLLocationCoordinate2D containerCoordinate=annotation.getClusterAnnotation().getCoordinate();
          annotation.setClusterAnnotation(null);
          annotation.setCoordinate(containerCoordinate);
          UIView.animate(0.3,new Runnable(){
            @Override public void run(){
              annotation.setCoordinate(actualCoordinate);
            }
          }
);
        }
      }
    }
    @Override public MKAnnotationView getAnnotationView(    MKMapView mapView,    MKAnnotation annotation){
      final String annotationIdentifier="String_Node_Str";
      if (mapView != PhotoMapViewController.this.mapView) {
        return null;
      }
      if (annotation instanceof PhotoAnnotation) {
        MKPinAnnotationView annotationView=(MKPinAnnotationView)mapView.dequeueReusableAnnotationView(annotationIdentifier);
        if (annotationView == null) {
          annotationView=new MKPinAnnotationView(annotation,annotationIdentifier);
          annotationView.setCanShowCallout(true);
          annotationView.setPinColor(MKPinAnnotationColor.Red);
          annotationView.setAnimatesDrop(true);
          UIButton disclosureButton=UIButton.create(UIButtonType.DetailDisclosure);
          annotationView.setRightCalloutAccessoryView(disclosureButton);
        }
 else {
          annotationView.setAnnotation(annotation);
        }
        return annotationView;
      }
      return null;
    }
    /** 
 * User tapped the call out accessory 'i' button.
 * @param mapView
 * @param view
 * @param control 
 */
    @Override public void calloutAccessoryControlTapped(    MKMapView mapView,    MKAnnotationView view,    UIControl control){
      PhotoAnnotation annotation=(PhotoAnnotation)view.getAnnotation();
      List<PhotoAnnotation> photosToShow=new ArrayList<>();
      photosToShow.add(annotation);
      photosToShow.addAll(annotation.getContainedAnnotations());
      photosViewController.setPhotosToShow(photosToShow);
      getNavigationController().pushViewController(photosViewController,true);
    }
    @Override public void didSelectAnnotationView(    MKMapView mapView,    MKAnnotationView view){
      if (view.getAnnotation() instanceof PhotoAnnotation) {
        PhotoAnnotation annotation=(PhotoAnnotation)view.getAnnotation();
        annotation.updateSubtitleIfNeeded();
      }
    }
  }
);
  getView().addSubview(mapView);
  MKCoordinateRegion newRegion=new MKCoordinateRegion(CherryLakeLocation,new MKCoordinateSpan(5.0,5.0));
  mapView.setRegion(newRegion);
  populateWorldWithAllPhotoAnnotations();
}