public class BunnyType extends JavaPlugin implements Listener {

    @Override
    public void onEnable() {
        getServer().getPluginManager().registerEvents(this, this);
    }

    @EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
    public void onInteract(PlayerInteractEntityEvent event) {
        Entity entity = event.getRightClicked();
        if (entity.getType().equals(EntityType.RABBIT)) {
            Rabbit rabbit = (Rabbit) entity;
            Rabbit.Type rabbitType = rabbit.getRabbitType();
            String type;
            if (rabbitType == null) {
                type = "type was NULL";
            } else {
                type = rabbitType.toString();
            }
            event.getPlayer().sendMessage("Rabbit Type: " + type);
        }
    }
}