newPlugin help

package com.spigot.developerrebel;

import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;

public class newPlugin extends JavaPlugin {


@Override
public void onEnable() {
    this.getLogger().info("enabled succesfully!");


}
@Override
public void onDisable() {
    this.getLogger().info("disabled succesfully");
}

@Override
public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
    if (cmd.getname().equalsIgnoreCase("spawn")) {
        if (sender instanceof Player)

            Player player = (Player) sender;
            if ( player.hasPermission("sp.spawn"));
    }


    return true;

}
}