Minecraft Forge 1.7.10：WorldEvent.load无法正常工作？

Question

我有一个eventhandler类，我正在尝试将消息聊天到服务器聊天，一旦加载，然而，WorldEvent.Load似乎永远不会被调用！代码：

package com.dropthevase.motdchanger;

import cpw.mods.fml.common.eventhandler.SubscribeEvent;
import net.minecraft.server.MinecraftServer;
import net.minecraft.util.ChatComponentText;
import net.minecraftforge.event.world.WorldEvent;

public class EventHandler {

 @SubscribeEvent
    public void onLoad(WorldEvent.Load event)
    {
        System.out.println("testing");
        MinecraftServer.getServer().addChatMessage(new ChatComponentText("MOTDChanger started."));
    }
}