Development Assistance A return error once issued the command

When I type /staff it replies with /staff in white writing, and I can't see the error in my code.

Code:

Code:

package me.bukkit.Inkzzz;

import static org.bukkit.ChatColor.*;

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

public class FinxStaff extends JavaPlugin implements Listener, CommandExecutor {
   
    public void onEnable() {
        getLogger().info("has been enabled!");
        getServer().getPluginManager().registerEvents(this, this);
    }
   
    public void onDisable() {
        getLogger().info("has been disabled!");
    }
   
    public boolean onCommand(CommandSender sender, Command cmd, String string, String[] args) {
       
        if(sender.getName().equalsIgnoreCase("staff") && sender instanceof Player) {
           
            Player player = (Player) sender;
           
           
            player.sendMessage(WHITE + "" + BOLD + "------------------------------------------------------------------");
            player.sendMessage("");
            player.sendMessage(AQUA + "" + BOLD + "Owner" + GRAY + "" + BOLD + " > " + getConfig().getString("Owner"));
            player.sendMessage(AQUA + "" + BOLD + "Head" + GRAY + "" + BOLD + "-" + AQUA + "" + BOLD + "Admin" + GRAY + "" + BOLD + " > " + getConfig().getString("Head-Admin"));
            player.sendMessage(AQUA + "" + BOLD + "Admins" + GRAY + "" + BOLD + " > " + getConfig().getString("Admins"));
            player.sendMessage(AQUA + "" + BOLD + "Moderators" + GRAY + "" + BOLD + " > " + getConfig().getString("Moderators"));
            player.sendMessage(AQUA + "" + BOLD + "Trial" + GRAY + "" + BOLD + "-" + AQUA + "" + BOLD + "Mod" + GRAY + "" + BOLD + " > " + getConfig().getString("Trial-Mod"));
            player.sendMessage("");
            player.sendMessage(WHITE + "" + BOLD + "------------------------------------------------------------------");
           
            return true;
        }
        return false;
    }

}

 

I like to use PlayerCommandPreprocessEvent.

Code:

public class Example implements Listener{
public void onEnable(){
Bukkit.getServer().getPluginManager().registerEvents(this, this);
}
@EventHandler
public void onTestArray(PlayerCommandPreprocessEvent e){
if(e.getMessage().contentEquals("/staff")){
//do what you want to do here
            }
    }

I have not tested this.

 

@timtower I forgot to post a while ago that I fixed this issues, but thanks anyway!