Program: 10416
Project: 10416
Buggy source:
public RegionsViewController(){
  UISegmentedControl switchButton=new UISegmentedControl(new CGRect(96,7,128,30));
  switchButton.insertSegment("String_Node_Str",0,false);
  switchButton.insertSegment("String_Node_Str",1,false);
  switchButton.setSelectedSegment(0);
  switchButton.addOnValueChangedListener(new UIControl.OnValueChangedListener(){
    @Override public void onValueChanged(    UIControl control){
      switchViews();
    }
  }
);
  getNavigationItem().setTitleView(switchButton);
  UIBarButtonItem addButton=new UIBarButtonItem(UIBarButtonSystemItem.Add,new UIBarButtonItem.OnClickListener(){
    @Override public void onClick(    UIBarButtonItem barButtonItem){
      addRegion();
    }
  }
);
  getNavigationItem().setRightBarButtonItem(addButton);
  UIView view=getView();
  updatesTableView=new UITableView(UIScreen.getMainScreen().getBounds());
  updatesTableView.setAutoresizingMask(UIViewAutoresizing.with(UIViewAutoresizing.FlexibleWidth,UIViewAutoresizing.FlexibleHeight));
  updatesTableView.setHidden(true);
  updatesTableView.setDataSource(new UITableViewDataSourceAdapter(){
    @Override public long getNumberOfSections(    UITableView tableView){
      return 1;
    }
    @Override public long getNumberOfRowsInSection(    UITableView tableView,    long section){
      return updateEvents.size();
    }
    @Override public UITableViewCell getCellForRow(    UITableView tableView,    NSIndexPath indexPath){
      final String cellIdentifier="String_Node_Str";
      UITableViewCell cell=tableView.dequeueReusableCell(cellIdentifier);
      if (cell == null) {
        cell=new UITableViewCell(UITableViewCellStyle.Default,cellIdentifier);
      }
      cell.getTextLabel().setFont(UIFont.getSystemFont(12));
      cell.getTextLabel().setText(updateEvents.get(indexPath.getRow()));
      cell.getTextLabel().setNumberOfLines(4);
      return cell;
    }
  }
);
  updatesTableView.setDelegate(new UITableViewDelegateAdapter(){
    @Override public double getHeightForRow(    UITableView tableView,    NSIndexPath indexPath){
      return 60;
    }
  }
);
  view.addSubview(updatesTableView);
  regionsMapView=new MKMapView(UIScreen.getMainScreen().getBounds());
  regionsMapView.setAutoresizingMask(UIViewAutoresizing.with(UIViewAutoresizing.FlexibleWidth,UIViewAutoresizing.FlexibleHeight));
  regionsMapView.setShowsUserLocation(true);
  regionsMapView.setDelegate(new MKMapViewDelegateAdapter(){
    @Override public MKAnnotationView getAnnotationView(    MKMapView mapView,    MKAnnotation annotation){
      if (annotation instanceof RegionAnnotation) {
        RegionAnnotation currentAnnotation=(RegionAnnotation)annotation;
        String annotationIdentifier=currentAnnotation.getTitle();
        RegionAnnotationView regionView=(RegionAnnotationView)regionsMapView.dequeueReusableAnnotationView(annotationIdentifier);
        if (regionView == null) {
          if (currentAnnotation.getCoordinate() != null) {
            regionView=new RegionAnnotationView(currentAnnotation);
            regionView.setMap(regionsMapView);
            UIButton removeRegionButton=new UIButton(UIButtonType.Custom);
            removeRegionButton.setFrame(new CGRect(0,0,25,25));
            removeRegionButton.setImage(UIImage.getImage("String_Node_Str"),UIControlState.Normal);
            regionView.setLeftCalloutAccessoryView(removeRegionButton);
            regionView.updateRadiusOverlay();
          }
        }
 else {
          regionView.setAnnotation(annotation);
          regionView.updateRadiusOverlay();
        }
        return regionView;
      }
      return null;
    }
    @Override public MKOverlayView getOverlayView(    MKMapView mapView,    MKOverlay overlay){
      if (overlay instanceof MKCircle) {
        MKCircleView circleView=new MKCircleView((MKCircle)overlay);
        circleView.setStrokeColor(UIColor.purple());
        circleView.setFillColor(UIColor.purple().addAlpha(0.4));
        return circleView;
      }
      return null;
    }
    @Override public void didChangeDragState(    MKMapView mapView,    MKAnnotationView view,    MKAnnotationViewDragState newState,    MKAnnotationViewDragState oldState){
      if (view instanceof RegionAnnotationView) {
        RegionAnnotationView regionView=(RegionAnnotationView)view;
        RegionAnnotation regionAnnotation=(RegionAnnotation)regionView.getAnnotation();
        if (newState == MKAnnotationViewDragState.Starting) {
          regionView.removeRadiusOverlay();
          locationManager.stopMonitoring(regionAnnotation.getRegion());
        }
        if (oldState == MKAnnotationViewDragState.Dragging && newState == MKAnnotationViewDragState.Ending) {
          regionView.updateRadiusOverlay();
          CLRegion newRegion=new CLRegion(regionAnnotation.getCoordinate(),1000,String.format("String_Node_Str",regionAnnotation.getCoordinate().getLatitude(),regionAnnotation.getCoordinate().getLongitude()));
          regionAnnotation.setRegion(newRegion);
          newRegion.release();
          locationManager.startMonitoring(regionAnnotation.getRegion(),CLLocationAccuracy.Best);
        }
      }
    }
    @Override public void calloutAccessoryControlTapped(    MKMapView mapView,    final MKAnnotationView view,    UIControl control){
      NSOperationQueue.getMainQueue().addOperation(new Runnable(){
        @Override public void run(){
          RegionAnnotationView regionView=(RegionAnnotationView)view;
          RegionAnnotation regionAnnotation=(RegionAnnotation)regionView.getAnnotation();
          locationManager.stopMonitoring(regionAnnotation.getRegion());
          regionView.removeRadiusOverlay();
          regionsMapView.removeAnnotation(regionAnnotation);
        }
      }
);
    }
  }
);
  view.addSubview(regionsMapView);
}

Fixed version (ground truth):
public RegionsViewController(){
  UISegmentedControl switchButton=new UISegmentedControl(new CGRect(96,7,128,30));
  switchButton.insertSegment("String_Node_Str",0,false);
  switchButton.insertSegment("String_Node_Str",1,false);
  switchButton.setSelectedSegment(0);
  switchButton.addOnValueChangedListener(new UIControl.OnValueChangedListener(){
    @Override public void onValueChanged(    UIControl control){
      switchViews();
    }
  }
);
  getNavigationItem().setTitleView(switchButton);
  UIBarButtonItem addButton=new UIBarButtonItem(UIBarButtonSystemItem.Add,new UIBarButtonItem.OnClickListener(){
    @Override public void onClick(    UIBarButtonItem barButtonItem){
      addRegion();
    }
  }
);
  getNavigationItem().setRightBarButtonItem(addButton);
  UIView view=getView();
  updatesTableView=new UITableView(UIScreen.getMainScreen().getBounds());
  updatesTableView.setAutoresizingMask(UIViewAutoresizing.with(UIViewAutoresizing.FlexibleWidth,UIViewAutoresizing.FlexibleHeight));
  updatesTableView.setHidden(true);
  updatesTableView.setDataSource(new UITableViewDataSourceAdapter(){
    @Override public long getNumberOfSections(    UITableView tableView){
      return 1;
    }
    @Override public long getNumberOfRowsInSection(    UITableView tableView,    long section){
      return updateEvents.size();
    }
    @Override public UITableViewCell getCellForRow(    UITableView tableView,    NSIndexPath indexPath){
      final String cellIdentifier="String_Node_Str";
      UITableViewCell cell=tableView.dequeueReusableCell(cellIdentifier);
      if (cell == null) {
        cell=new UITableViewCell(UITableViewCellStyle.Default,cellIdentifier);
      }
      cell.getTextLabel().setFont(UIFont.getSystemFont(12));
      cell.getTextLabel().setText(updateEvents.get(indexPath.getRow()));
      cell.getTextLabel().setNumberOfLines(4);
      return cell;
    }
  }
);
  updatesTableView.setDelegate(new UITableViewDelegateAdapter(){
    @Override public double getHeightForRow(    UITableView tableView,    NSIndexPath indexPath){
      return 60;
    }
  }
);
  view.addSubview(updatesTableView);
  regionsMapView=new MKMapView(UIScreen.getMainScreen().getBounds());
  regionsMapView.setAutoresizingMask(UIViewAutoresizing.with(UIViewAutoresizing.FlexibleWidth,UIViewAutoresizing.FlexibleHeight));
  regionsMapView.setShowsUserLocation(true);
  regionsMapView.setDelegate(new MKMapViewDelegateAdapter(){
    @Override public MKAnnotationView getAnnotationView(    MKMapView mapView,    MKAnnotation annotation){
      if (annotation instanceof RegionAnnotation) {
        RegionAnnotation currentAnnotation=(RegionAnnotation)annotation;
        String annotationIdentifier=currentAnnotation.getTitle();
        RegionAnnotationView regionView=(RegionAnnotationView)regionsMapView.dequeueReusableAnnotationView(annotationIdentifier);
        if (regionView == null) {
          if (currentAnnotation.getCoordinate() != null) {
            regionView=new RegionAnnotationView(currentAnnotation);
            regionView.setMap(regionsMapView);
            UIButton removeRegionButton=new UIButton(UIButtonType.Custom);
            removeRegionButton.setFrame(new CGRect(0,0,25,25));
            removeRegionButton.setImage(UIImage.getImage("String_Node_Str"),UIControlState.Normal);
            regionView.setLeftCalloutAccessoryView(removeRegionButton);
            regionView.updateRadiusOverlay();
          }
        }
 else {
          regionView.setAnnotation(annotation);
          regionView.updateRadiusOverlay();
        }
        return regionView;
      }
      return null;
    }
    @Override public MKOverlayView getOverlayView(    MKMapView mapView,    MKOverlay overlay){
      if (overlay instanceof MKCircle) {
        MKCircleView circleView=new MKCircleView((MKCircle)overlay);
        circleView.setStrokeColor(UIColor.purple());
        circleView.setFillColor(UIColor.purple().addAlpha(0.4));
        return circleView;
      }
      return null;
    }
    @Override public void didChangeDragState(    MKMapView mapView,    MKAnnotationView view,    MKAnnotationViewDragState newState,    MKAnnotationViewDragState oldState){
      if (view instanceof RegionAnnotationView) {
        RegionAnnotationView regionView=(RegionAnnotationView)view;
        RegionAnnotation regionAnnotation=(RegionAnnotation)regionView.getAnnotation();
        if (newState == MKAnnotationViewDragState.Starting) {
          regionView.removeRadiusOverlay();
          locationManager.stopMonitoring(regionAnnotation.getRegion());
        }
        if (oldState == MKAnnotationViewDragState.Dragging && newState == MKAnnotationViewDragState.Ending) {
          regionView.updateRadiusOverlay();
          CLRegion newRegion=new CLRegion(regionAnnotation.getCoordinate(),1000,String.format("String_Node_Str",regionAnnotation.getCoordinate().getLatitude(),regionAnnotation.getCoordinate().getLongitude()));
          regionAnnotation.setRegion(newRegion);
          newRegion.release();
          locationManager.startMonitoring(regionAnnotation.getRegion());
        }
      }
    }
    @Override public void calloutAccessoryControlTapped(    MKMapView mapView,    final MKAnnotationView view,    UIControl control){
      NSOperationQueue.getMainQueue().addOperation(new Runnable(){
        @Override public void run(){
          RegionAnnotationView regionView=(RegionAnnotationView)view;
          RegionAnnotation regionAnnotation=(RegionAnnotation)regionView.getAnnotation();
          locationManager.stopMonitoring(regionAnnotation.getRegion());
          regionView.removeRadiusOverlay();
          regionsMapView.removeAnnotation(regionAnnotation);
        }
      }
);
    }
  }
);
  view.addSubview(regionsMapView);
}