NullPointerException

Code:

01.01 17:48:03 [Server] INFO ... 13 more
01.01 17:48:03 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at me.samthelord1.tokens.Main.onCommand(Main.java:94) ~[?:?]
01.01 17:48:03 [Server] INFO Caused by: java.lang.NullPointerException
01.01 17:48:03 [Server] INFO at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:558) [craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:258) [craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:667) [craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at net.minecraft.server.v1_7_R4.ServerConnection.c(SourceFile:134) [craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:157) [craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at net.minecraft.server.v1_7_R4.PacketPlayInChat.handle(PacketPlayInChat.java:47) [craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at net.minecraft.server.v1_7_R4.PacketPlayInChat.a(PacketPlayInChat.java:28) [craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:818) [craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at net.minecraft.server.v1_7_R4.PlayerConnection.handleCommand(PlayerConnection.java:957) [craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:740) ~[craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180) ~[craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit_dev_3116.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
01.01 17:48:03 [Server] INFO org.bukkit.command.CommandException: Unhandled exception executing command 'tokens' in plugin Tokens v1.0.0
01.01 17:48:03 [Server] ERROR null

getting this, line 94 in Main class;
menu.show(p);

Whole onCommand section;

Code:

@Override
   public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args){
   if(cmd.getLabel().equalsIgnoreCase("tokens")) {

      
      
       if(!(sender instanceof Player)) {
          sender.sendMessage("You must be a player to perform this command!");
      }
      if(sender instanceof Player) {
        
          if(args.length == 0) {
              sender.sendMessage(ChatColor.GOLD + "========[TokenShop]========");
              sender.sendMessage(ChatColor.GOLD + "[TokenShop]" + ChatColor.GREEN + "</tokens balance> - Displays how many tokens you have.");
              sender.sendMessage(ChatColor.GOLD + "[TokenShop]" + ChatColor.GREEN + "</tokens shop> - Opens the token shop.");
          }
              if(args.length >= 2) {
              sender.sendMessage(ChatColor.GOLD + "========[TokenShop]========");
              sender.sendMessage(ChatColor.GOLD + "[TokenShop]" + ChatColor.GREEN + "</tokens balance> - Displays how many tokens you have.");
              sender.sendMessage(ChatColor.GOLD + "[TokenShop]" + ChatColor.GREEN + "</tokens shop> - Opens the token shop.");
             
         
          }
          if(args.length == 1) {
             
          Player p = (Player) sender;
          if(args[0].equalsIgnoreCase("balance")) {
            p.sendMessage(ChatColor.GOLD + "[TokenShop]" + ChatColor.GREEN + "you have " + getConfig().getInt("tokens." + p.getName()) + "."); 
          }
          if(args[0].equalsIgnoreCase("shop")) {
              menu.show(p);
            
          }
             
         
      }
      }
   }
   return true;
   }

 

@Samthelord1 show us the show method.

 

The error is on line 94 I think.. Try looking at it.. U should try putting return true; on the bottom of the end of the command.. Just a suggestion.. And did u make the menu? And correctly set the slots??

 

@drpk
public void show(Player p) {
p.openInventory(inv);
}

 

@Samthelord1 I believe inv is null.

 

@drpk create inv here;
public Inventory inv;

add itemstacks to inv here;
inv.setItem(0, sgapple);
inv.setItem(1, lbow);
inv.setItem(2, laxe);
inv.setItem(3, lsword);
inv.setItem(4, lshovel);
inv.setItem(5, lpickaxe);
inv.setItem(6, creeperegg);
inv.setItem(7, hopper);
inv.setItem(8, beacon);

@drpk checked if !inv == null, still getting the error.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

menu is null. Given the code you have provided and the stack trace, there can be no other cause.

 

Is it too late to post this? http://bukkit.org/threads/how-to-re...ubleshoot-your-own-plugins-by-yourself.32457/