Plugin Help onCommand help!!!

hello!
i've a problem with the args[] of: onCommand(CommandSender sender, Command cmd, String label, String args[])

this is my code (class name : RKFCommands):

Code:

package be.drgeek.RKF;

import java.util.ArrayList;
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;

public class RKFCommands implements CommandExecutor{
    RKFMain plugin;
    ArrayList<String> factions = new ArrayList<String>();
   
    public RKFCommands(RKFMain plugin){
        this.plugin = plugin;
    }


    public boolean onCommand(CommandSender sender, Command cmd, String label, String args[]){
       
       
       
        try{
        Player p = (Player) sender;
        if(sender instanceof Player){
       
            if(label.equalsIgnoreCase("faction")){
                if(args.length == 0){
                   
                    // /faction
                   
                    p.sendMessage(ChatColor.RED + "Usage: /faction [add/list] [FactionName]");
                   
                }else if(args.length == 1){
                   
                    // 2 mots
                   
                    if(args[1] == "list" && factions.size() != 0){
                        for(Integer i = 0; i < factions.size(); i++){
                            p.sendMessage(ChatColor.GOLD + String.format("%i: %s", i, factions.get(i)));
                        }
                    }else if(args[1] == "list" && factions.size() == 0){
                        p.sendMessage(ChatColor.RED + "Aucunes Factions.");
                    }else{
                        p.sendMessage(ChatColor.RED + "Usage: /faction [add/list] [FactionName]");
                    }
                   
                }else if(args.length == 2){
                   
                    // 3 mots
                   
                    if(args[1] == "add"){
                        factions.add(args[2]);
                    }else{
                        p.sendMessage(ChatColor.RED + "Usage: /faction [add/list] [FactionName]");
                    }
                   
                }else{
                   
                    // 4 ou plus de mots
                   
                    p.sendMessage(ChatColor.RED + "Usage: /faction [add/list] [FactionName]");
                   
                }
            }
       
        }
        }catch(Exception e){
            e.printStackTrace();
        }
       
        //si joueur
        //if(sender instanceof Player)
       
       
        return false;
    }

and when i execute the command /faction , he return the usage : normal
when i execute /faction add [factionName] , he return the usage : WTF
when i execute /faction list he return :

Code:

[17:10:23 WARN]: java.lang.ArrayIndexOutOfBoundsException: 1
[17:10:23 WARN]:        at be.drgeek.RKF.RKFCommands.onCommand(RKFCommands.java:
38)
[17:10:23 WARN]:        at org.bukkit.command.PluginCommand.execute(PluginComman
d.java:44)
[17:10:23 WARN]:        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCo
mmandMap.java:181)
[17:10:23 WARN]:        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCo
mmand(CraftServer.java:767)
[17:10:23 WARN]:        at net.minecraft.server.v1_7_R4.PlayerConnection.handleC
ommand(PlayerConnection.java:1043)
[17:10:23 WARN]:        at net.minecraft.server.v1_7_R4.PlayerConnection.a(Playe
rConnection.java:880)
[17:10:23 WARN]:        at net.minecraft.server.v1_7_R4.PacketPlayInChat.a(Packe
tPlayInChat.java:28)
[17:10:23 WARN]:        at net.minecraft.server.v1_7_R4.PacketPlayInChat.handle(
PacketPlayInChat.java:65)
[17:10:23 WARN]:        at net.minecraft.server.v1_7_R4.NetworkManager.a(Network
Manager.java:186)
[17:10:23 WARN]:        at net.minecraft.server.v1_7_R4.ServerConnection.c(Serve
rConnection.java:81)
[17:10:23 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.v(Minecr
aftServer.java:734)
[17:10:23 WARN]:        at net.minecraft.server.v1_7_R4.DedicatedServer.v(Dedica
tedServer.java:289)
[17:10:23 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.u(Minecr
aftServer.java:584)
[17:10:23 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.run(Mine
craftServer.java:490)
[17:10:23 WARN]:        at net.minecraft.server.v1_7_R4.ThreadServerApplication.
run(SourceFile:628)

i think it's the

Code:

args[1]

is the bug

i found the bug : args are 1+ than we need

<Edited by bwfcwalshy: Merged posts, please use the edit button rather than double posting.>