Cryptite

//Spoof Health Packets
ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(plugin, ENTITY_METADATA) {
    public void onPacketSending(PacketEvent event) {
        try {
            Player observer = event.getPlayer();
            StructureModifier<Entity> entityModifer = event.getPacket().getEntityModifier(observer.getWorld());
            org.bukkit.entity.Entity entity = entityModifer.read(0);
            if (entity != null && observer != entity && entity instanceof Player
                    && (entity.getPassenger() == null || entity.getPassenger() != observer)) {
                event.setPacket(event.getPacket().deepClone());

SilverCory

import com.google.gson.*;
import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.World;

import java.lang.reflect.Type;

/**
 * A gson adapter for {@link org.bukkit.Location}.
 * <p>