Attempt Alternate NMS Teleport Strategy

[Jake-Moore]

package com.golfing8.nms.event;

import com.golfing8.nms.reflection.FieldHandle;
import com.golfing8.nms.reflection.FieldHandles;
import org.bukkit.event.HandlerList;
import org.bukkit.plugin.RegisteredListener;

public class HandlerListAccessor {
    private static FieldHandle<RegisteredListener[]> registeredListenersFieldHandle;
    private static boolean setup;

    public static RegisteredListener[] getRegisteredListeners(HandlerList handlerList) {
        if (!setup)
            return null;

        return registeredListenersFieldHandle.get(handlerList);
    }

    public static void setRegisteredListeners(HandlerList handlerList, RegisteredListener[] listeners) {
        if (!setup)
            return;

        registeredListenersFieldHandle.set(handlerList, listeners);
    }

    static {
        try {
            registeredListenersFieldHandle = (FieldHandle<RegisteredListener[]>) FieldHandles.getHandle("handlers", HandlerList.class);
            setup = true;
        } catch (Throwable thr) {
            registeredListenersFieldHandle = null;
            setup = false;
        }
    }
}