Solved PlayerCommandPreprocessEvent firing twice

So I'm working on a command spy that checks all commands used against a blacklist and alerts the staff accordingly. This is what I have so far.

Code:

public class CommandSpy implements Listener{
   
    public CommandSpy(ThunderSuite plugin){
        plugin.getServer().getPluginManager().registerEvents(this, plugin);
    }
   
    public boolean checkCommand(String message){
        for (String key : ConfigManager.get("command_blacklist.yml").getConfigurationSection("commands").getKeys(false)){
            if(message.startsWith(key)){
                return true;
            }
        }   
        return false;
    }
   
    @EventHandler
    public void onPlayerChatEvent(PlayerCommandPreprocessEvent e){
        if(checkCommand(e.getMessage())){
            Bukkit.getServer().broadcastMessage(ChatColor.RED + "[CommandSpy] " + ChatColor.GREEN + " " + e.getPlayer().getName() + " has used the command " + e.getMessage());
        }
    }
}

Everything is working but for whatever reason PlayerCommandPreprocessEvent is firing twice when it should only be firing once resulting in this.
Example - [CommandSpy] r0llingthund3r has used the command /op

r0llingthund3r has used the command /op​

I have no idea why it would be doing this.

 

Check to see if you have something else re-firing a command in your code, and test with only your plugin.

 

I can't find anywhere in my code where it's re-firing a command and the command itself is not what is being fired twice. If I typed /op and it was found on the black list, it would alert the staff members twice but only attempt to /op once. I'm still thoroughly stumped...

 

r0llingthund3r I doubt the event is firing twice, have you registered your listener twice?
Can you show your class that extends JavaPlugin?

 

Yup that was it. I had my listener registered twice. Thank you very much for your help.