Update 1.7.2

ReflectionHelper.java

package com.iKeirNez.CastleDefence.slave.utilities;

import org.bukkit.Bukkit;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Player;

import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

/**
 * Created by iKeirNez on 10/11/13.
 */
public class ReflectionHelper {

    public static void sendPacket(Player p, Object packet){
        try {
            Object nmsPlayer = getHandle(p);
            Field con_field = nmsPlayer.getClass().getField("playerConnection");
            Object con = con_field.get(nmsPlayer);
            Method packet_method = getMethod(con.getClass(), "sendPacket");
            packet_method.invoke(con, packet);
        } catch (SecurityException | NoSuchFieldException | InvocationTargetException | IllegalAccessException | IllegalArgumentException e) {
            e.printStackTrace();
        }
    }

    public static Class<?> getNMSClass(String className){
        String name = Bukkit.getServer().getClass().getPackage().getName();
        String version = name.substring(name.lastIndexOf('.') + 1)+".";
        String finalClassName = "net.minecraft.server." + version + className;
        Class<?> c = null;
        try {
            c = Class.forName(finalClassName);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
        return c;
    }

    public static Object getHandle(Entity entity){
        Object nms_entity = null;
        Method entity_getHandle = getMethod(entity.getClass(), "getHandle");
        try {
            nms_entity = entity_getHandle.invoke(entity);
        } catch (IllegalArgumentException | InvocationTargetException | IllegalAccessException e) {
            e.printStackTrace();
        }
        return nms_entity;
    }

    public static Field getField(Class<?> cl, String field_name){
        try {
            Field field = cl.getDeclaredField(field_name);
            return field;
        } catch (NoSuchFieldException | SecurityException e){
            e.printStackTrace();
        }

        return null;
    }

    public static Method getMethodNoArgs(Class<?> cl, String method){
        for (Method method1 : cl.getMethods()){
            if (method1.getName().equals(method) && method1.getParameterTypes().length == 0){
                return method1;
            }
        }

        return null;
    }

    public static Method getMethod(Class<?> cl, String method){
        for (Method method1 : cl.getMethods()){
            if (method1.getName().equals(method)){
                return method1;
            }
        }

        return null;
    }

    public static Method getMethod(Class<?> cl, String method, Class<?>[] args) {
        try {
            return cl.getMethod(method, args);
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
            return null;
        }
    }

    public static boolean classListEqual(Class<?>[] l1, Class<?>[] l2) {
        boolean equal = true;
        if (l1.length != l2.length) {
            return false;
        }
        for (int i = 0; i < l1.length; i++) {
            if (l1[i] != l2[i]) {
                equal = false;
                break;
            }
        }
        return equal;
    }

}