I need help with my plugin, i dont know what's the problem

here it is my plugin, which doesnt work, but i dont know the reason

Code:java

 
package me.TheUncouver;
 
import static javax.sql.rowset.spi.SyncFactory.getLogger;
import org.bukkit.ChatColor;
import org.bukkit.GameMode;
import static org.bukkit.GameMode.SURVIVAL;
import org.bukkit.Material;
import org.bukkit.command.Command;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.PlayerInventory;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.potion.PotionEffect;
import org.bukkit.potion.PotionEffectType;
 
/**
* Moderator's plugin
* @author TheUncouver
*/
public class Main extends JavaPlugin{
    public void onEnable(){
        getLogger().info("Plugin activated succesfuly");
    }
    public void onDisable(){
        getLogger().info("Plugin desactivated succesfuly");
    }
 
    /**
     *
     * @param sender
     * @param cmd
     * @param Label
     * @param args
     * @return
     */
    @SuppressWarnings("empty-statement")
        public boolean onCommand(Commandsender sender, Command cmd, String Label, String[] args){
            if(cmd.getName().equalsIgnoreCase("moderator")){
                if(sender instanceof Player){
                    Player p = (Player) sender;
                    p.setAllowFlight(true);
                    p.setFlying(true);
                    GameMode gameMode;
                    gameMode = SURVIVAL;
                    p.hidePlayer(p);
                    p.getPlayer().sendMessage(ChatColor.RED + "You are now in Mod mode");
                    p.setCanPickupItems(false);
                    p.addPotionEffect(new PotionEffect(PotionEffectType.REGENERATION, 4000, 40000));
                    p.addPotionEffect(new PotionEffect(PotionEffectType.SATURATION, 4000,40000));
                    p.addPotionEffect(new PotionEffect(PotionEffectType.NIGHT_VISION, 4000,40000));
                    p.addPotionEffect(new PotionEffect(PotionEffectType.FIRE_RESISTANCE, 4000,40000));
                    p.addPotionEffect(new PotionEffect(PotionEffectType.DAMAGE_RESISTANCE, 4000,40000));
                    p.getInventory().clear();
                    PlayerInventory inventory;
                    inventory = (PlayerInventory) p.getInventory().addItem(ItemStack(Material.COMPASS, 1));
 
 
                }
            }else{
                sender.sendMessage("This command is only for players");
            }
            if(cmd.getName().equalsIgnoreCase("h")){
             if(sender instanceof Player){
                 Player p = (Player) sender;
                 p.showPlayer(p);
                 p.setAllowFlight(false);
                 p.setFlying(false);
                 p.setCanPickupItems(true);
                 p.removePotionEffect(PotionEffectType.REGENERATION);
                 p.removePotionEffect(PotionEffectType.SATURATION);
                 p.removePotionEffect(PotionEffectType.NIGHT_VISION);
                 p.removePotionEffect(PotionEffectType.FIRE_RESISTANCE);
                 p.removePotionEffect(PotionEffectType.DAMAGE_RESISTANCE);
                 p.getInventory().clear();
                 p.getPlayer().sendMessage(ChatColor.RED + "You are no longer in Mod mode");
             } 
            }else{
               sender.sendMessage("This command is only for players");
            }
            return false;
            }
 
    private ItemStack[] ItemStack(Material material, int i) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
 
    private static class Commandsender {
 
        public Commandsender() {
        }
 
        private void sendMessage(String this_command_is_only_for_players) {
            throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        }
    }
}

 

You can't implement your own CommandSender object and then expect bukkit to use that instead. You need to use Bukkit's implementation.

Additionally, stop statically importing getLogger() from a random source, you already have that method in your class for your own plugin logger.

 

@TheUncouver Additionaly -> Check Java Naming Conventions. Your packagename is terrible and why doesn't have it a own package (the plugin)?

Why? srsly...why????

 

I've never coded anything on java, and i'm such a noob, it doesnt work, but the plugin activates correctly, and where shall i implement that?

 

then tell me exactly what shall i do pls

well, on netbeans, it doesnt give me any error, and if i start the server, the plugin activates correctly, but none of the commands work

EDIT by Timtower: merged posts

 

yes

if(cmd.getName().equalsIgnoreCase("moderator")){
if(cmd.getName().equalsIgnoreCase("h")){

 

how do i register it?

 

He's new at java.. he can start adding dependencies manually .