gistfile1.txt

package org.discordpvp;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.potion.PotionEffect;

public class KitchenSink extends JavaPlugin{
	@Override
	public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
	    if (cmd.getName().equalsIgnoreCase("removePotion")) {
	        if (!(sender instanceof Player)) {
	            sender.sendMessage("Only players can use this command!");
	            return true;
	        }
	        // After checking to make sure that the sender is a Player, we can safely case it to one.
	        Player s = (Player) sender;
	        for (PotionEffect effect : s.getActivePotionEffects())
	            s.removePotionEffect(effect.getType());
	        return true;
	    }
	    return false;
	}
}