Help with ClearInventory plugin?

Code:java

package kKev.commands;
 
import kKevUtil.Util;
import org.bukkit.Bukkit;
import 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.inventory.ItemStack;
 
public class kKevClearInv implements CommandExecutor {
    public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String args[])
    {
        if(!(sender instanceof Player)){
            System.out.println("You must be a player to do this");
            return false;
        }
        Player player = (Player)sender;
        Player tp = Bukkit.getPlayer(args[0]);
        String color = Util.getColour(tp);
        if(commandLabel.equalsIgnoreCase("ci"))
            if(sender.hasPermission("kKev.clearinv"))
            {
                if(args.length == 0)
                {
                    player.sendMessage(ChatColor.GRAY + "Your inventory was cleared.");
                    player.getInventory().setContents(new ItemStack[36]);
                    player.getInventory().setArmorContents(new ItemStack[4]);
                }
                if(args.length == 1) {
                    tp.getInventory().setArmorContents(new ItemStack[4]);
                    tp.getInventory().setContents(new ItemStack[36]);
                    tp.sendMessage(ChatColor.GRAY + "Your inventory was cleared.");
                    player.sendMessage(color + tp.getName() + ChatColor.GRAY + "'s inventory was cleared.");
                }
                else {
                    player.sendMessage(ChatColor.GRAY + "Usage: /ci <playername>");
                }
            } else if (!(player.hasPermission("kKev.clearinv")))
            {
            String help = "\"help\"";
            player.sendMessage(ChatColor.WHITE + "Unknown command. Type" + help + " for help");
 
            }
        return false;
    }}

Getting errors! Help???
Here is the console errors

Code:

21:59:59 [INFO] KevPvP issued server command: /ci
21:59:59 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'ci'
in plugin kKevPlugin v1.1
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:19
2)
        at org.bukkit.craftbukkit.v1_6_R3.CraftServer.dispatchCommand(CraftServe
r.java:523)
        at net.minecraft.server.v1_6_R3.PlayerConnection.handleCommand(PlayerCon
nection.java:959)
        at net.minecraft.server.v1_6_R3.PlayerConnection.chat(PlayerConnection.j
ava:877)
        at net.minecraft.server.v1_6_R3.PlayerConnection.a(PlayerConnection.java
:834)
        at net.minecraft.server.v1_6_R3.Packet3Chat.handle(SourceFile:49)
        at net.minecraft.server.v1_6_R3.NetworkManager.b(NetworkManager.java:296
)
        at net.minecraft.server.v1_6_R3.PlayerConnection.e(PlayerConnection.java
:116)
        at net.minecraft.server.v1_6_R3.ServerConnection.b(SourceFile:37)
        at net.minecraft.server.v1_6_R3.DedicatedServerConnection.b(SourceFile:3
0)
        at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:5
92)
        at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:2
27)
        at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:4
88)
        at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java
:421)
        at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:5
83)
Caused by: java.lang.IllegalArgumentException: Name cannot be null
        at org.apache.commons.lang.Validate.notNull(Validate.java:203)
        at org.bukkit.craftbukkit.v1_6_R3.CraftServer.getPlayer(CraftServer.java
:323)
        at kKev.commands.kKevClearInv.onCommand(kKevClearInv.java:21)
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
        ... 15 more

 

You're getting an IllegalArgumentException, meaning that somewhere in your code you're attempting to use a variable that's null. Upon looking at your code, I believe you should have a look at line 21:

Code:

        Player player = (Player)sender;
        Player tp = Bukkit.getPlayer(args[0]);
        String color = Util.getColour(tp);

You're attempting to assign color to a value which doesn't necessarily exist which is why /ci throws up errors.

Try putting it AFTER the if(args.length == 1) statement.

EDIT: Thanks The_Doctor_123

 

bigbeno37
That is not line 21. It is the line after you just stated. And if he didn't type 1 argument, that would throw an ArrayIndexOutOfBoundsException.