Java GXT tree item image

          tree.setIconProvider(new IconProvider<BaseDto>() {
@Override
public ImageResource getIcon(BaseDto model) {
if (model!=null&&model.getKeyname()=="musictanimlari") {
return Images.INSTANCE.music();
}
return null;
}
});

import com.google.gwt.core.client.GWT;
import com.google.gwt.resources.client.ClientBundle;
import com.google.gwt.resources.client.ImageResource;


public interface Images extends ClientBundle {
	public Images INSTANCE = GWT.create(Images.class);
		
	@Source("music.png")
	ImageResource music();
	
	
}