Solved Random null error

So,

I have two commands in my onCommand method. The first command works perfectly, with absolutely no errors. The second one works completely fine, except for my error check if there are 0 arguments. I've got it to say that you need to enter the command properly, but right after that I get an internal error.

onCommand Method (open) onCommand Method (close)

Code:

    public boolean onCommand( CommandSender sender, Command cmd, String label, String[] args ) {
        if(!(sender instanceof Player ) ) {
            sender.sendMessage( ChatColor.DARK_RED + "Error: Cannot send from console!" );
            return true;
        }
        //Command HelpOp - Used by players to get help from Staff
        if( cmd.getName().equalsIgnoreCase( "helpop" ) ) {
            Player player = (Player) sender;
        
            if( player.hasPermission( "customs.send" ) ) {
            
              if( args.length == 0 )
                  player.sendMessage( ChatColor.RED + "Error: Proper usage /helpop <Message>" );
              else {
                  StringBuilder str = new StringBuilder();
                  for( int i = 0; i < args.length; i++ )
                      str.append(args[i] + " " );
                  player.sendMessage( ChatColor.GOLD + "Message sent!" );
                  for( Player p : Bukkit.getOnlinePlayers() ) {
                      if( p.hasPermission( "customs.receive" ) )
                          p.sendMessage( ChatColor.DARK_RED + "[Help] "+ ChatColor.GOLD + "[From]: "+ p.getName() + ": " + ChatColor.GREEN + str.toString().trim());
                  }
              }
            }
            else
                player.sendMessage( ChatColor.RED + "Error: You lack permissions to send Staff messages!" );
        }
        //Command StaffToPlayer - Used to respond to Players HelpOp messages
        if( cmd.getName().equalsIgnoreCase( "stafftoplayer") ) {
            Player player = (Player) sender;
        
            if( player.hasPermission( "customs.admin" )) {
            
                if( args.length == 0 ) {
                    player.sendMessage( ChatColor.RED + "Error: Proper usage /StaffToPlayer <Player> <Message>" );
                }
            
              Player target = Bukkit.getServer().getPlayer(args[0]);
          
                if( target == null ) {
                    player.sendMessage( ChatColor.RED + "Error: Player is offline!" );
                }
              else {
                  StringBuilder str = new StringBuilder();
                  for( int i = 1; i < args.length; i++ )
                      str.append(args[i] + " " );
                  player.sendMessage( ChatColor.GOLD + "Message sent!" );
                  target.sendMessage( ChatColor.DARK_RED + "[From Admin]: "+ ChatColor.GOLD + str.toString().trim());
              }
            }
            else
                player.sendMessage( ChatColor.RED + "Error: You lack permissions to send Admin messages!" );
        }
        return false;
    }

Error message (open) Error message (close)

[01:37:21 INFO]: ForsakenRealmz issued server command: /stafftoplayer
[01:37:21 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'staf
ftoplayer' in plugin PlayerToStaff v1.0
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[cra
ftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:18
0) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchCommand(CraftServe
r.java:701) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.PlayerConnection.handleCommand(PlayerCon
nection.java:956) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.PlayerConnection.a(PlayerConnection.java
:817) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.PacketPlayInChat.a(PacketPlayInChat.java
:28) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.PacketPlayInChat.handle(PacketPlayInChat
.java:47) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:157
) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.ServerConnection.c(SourceFile:134) [craf
tbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:6
67) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:2
60) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:5
58) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java
:469) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:6
28) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
at net.forsakencraft.PlayerToStaff.PlayerToStaff.onCommand(PlayerToStaff
.java:56) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[cra
ftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
... 13 more

In-game error message: http://gyazo.com/b035f7795b62f5e8cc0bb1b255288b05

Ehh.. Got it to work by adding a "return true;" in the check if the args == 0... I understand now why it was broken.. I think? Haha

 

Well your error was occurring because you were getting the object at index 0 but it didn't exist.