How to create a sort of virtual furnace?

What I am trying to achieve here is making a furnace that players can open with a command. Say if Player1 types /furnace, the furnace GUI will appear and then they can smelt things in it, but if Player2 types /furnace, it opens the same furnace with the same items, sort of like a shared furnace.
It is currently working for a workbench (although you can't share the workbench) but not for my furnace. I will post the relevant code for my furnace and my workbench.

Workbench code:

Code:java

public InventoryType WORKBENCH;
//stuff
if(commandLabel.equalsIgnoreCase("bench"))
    {
    if(!p.hasPermission("pokereaper.craft"))
        {
            p.sendMessage(ChatColor.RED + "You don't have the permission " + ChatColor.YELLOW + "pokereaper.craft" + ChatColor.RED + ".");
        }
        else
        {
            Inventory craft = p.getServer().createInventory(null, WORKBENCH);
            p.openInventory(craft);
        }
}

Furnace code:

Code:java

public InventoryType FURNACE;
public static int y = 1;
//stuff
if(commandLabel.equalsIgnoreCase("furnace"))
{
    if(!p.hasPermission("pokereaper.craft"))
    {
        p.sendMessage(ChatColor.RED + "You don't have the permission " + ChatColor.YELLOW + "pokereaper.craft" + ChatColor.RED + ".");
    }
    else
    {
        if(y == 1)
        {
            furnace = p.getServer().createInventory(null, FURNACE);
            y = 0;
        }
        p.openInventory(furnace);
    }
}

Any clue why this doesn't work? When I type /bench, it works perfectly but when I type /furnace, it throws an error in the console and displays 'An internal error occurred while attempting to perform this command' in my chat.

Thanks for taking the time to look at this ^^

~honk

 

iPoke111 when it says 'An internal error occurred while attempting to perform this command' it should throw an error in the console, please tell us what that says.

 

alright. Also, now my bench code doesn't work >_<

I'll post it here

Code:

[SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'bench' in plugin Reaper v1.0
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:189)
    at org.bukkit.craftbukkit.v1_6_R2.CraftServer.dispatchCommand(CraftServer.java:523)
    at net.minecraft.server.v1_6_R2.PlayerConnection.handleCommand(PlayerConnection.java:964)
    at net.minecraft.server.v1_6_R2.PlayerConnection.chat(PlayerConnection.java:882)
    at net.minecraft.server.v1_6_R2.PlayerConnection.a(PlayerConnection.java:839)
    at net.minecraft.server.v1_6_R2.Packet3Chat.handle(SourceFile:49)
    at net.minecraft.server.v1_6_R2.NetworkManager.b(NetworkManager.java:296)
    at net.minecraft.server.v1_6_R2.PlayerConnection.e(PlayerConnection.java:118)
    at net.minecraft.server.v1_6_R2.ServerConnection.b(SourceFile:37)
    at net.minecraft.server.v1_6_R2.DedicatedServerConnection.b(SourceFile:30)
    at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:590)
    at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:226)
    at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:486)
    at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:419)
    at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)
Caused by: java.lang.NullPointerException
    at org.bukkit.craftbukkit.v1_6_R2.inventory.CraftInventoryCustom$MinecraftInventory.<init>(CraftInventoryCustom.java:37)
    at org.bukkit.craftbukkit.v1_6_R2.inventory.CraftInventoryCustom.<init>(CraftInventoryCustom.java:17)
    at org.bukkit.craftbukkit.v1_6_R2.CraftServer.createInventory(CraftServer.java:1264)
    at me.iPoke111.reaper.Reaper.onCommand(Reaper.java:127)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
    ... 15 more
2013-08-14 14:54:01 [INFO] iPoke111 issued server command: /furnace
2013-08-14 14:54:01 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'furnace' in plugin Reaper v1.0
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:189)
    at org.bukkit.craftbukkit.v1_6_R2.CraftServer.dispatchCommand(CraftServer.java:523)
    at net.minecraft.server.v1_6_R2.PlayerConnection.handleCommand(PlayerConnection.java:964)
    at net.minecraft.server.v1_6_R2.PlayerConnection.chat(PlayerConnection.java:882)
    at net.minecraft.server.v1_6_R2.PlayerConnection.a(PlayerConnection.java:839)
    at net.minecraft.server.v1_6_R2.Packet3Chat.handle(SourceFile:49)
    at net.minecraft.server.v1_6_R2.NetworkManager.b(NetworkManager.java:296)
    at net.minecraft.server.v1_6_R2.PlayerConnection.e(PlayerConnection.java:118)
    at net.minecraft.server.v1_6_R2.ServerConnection.b(SourceFile:37)
    at net.minecraft.server.v1_6_R2.DedicatedServerConnection.b(SourceFile:30)
    at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:590)
    at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:226)
    at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:486)
    at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:419)
    at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)
Caused by: java.lang.NullPointerException
    at org.bukkit.craftbukkit.v1_6_R2.inventory.CraftInventoryCustom$MinecraftInventory.<init>(CraftInventoryCustom.java:37)
    at org.bukkit.craftbukkit.v1_6_R2.inventory.CraftInventoryCustom.<init>(CraftInventoryCustom.java:17)
    at org.bukkit.craftbukkit.v1_6_R2.CraftServer.createInventory(CraftServer.java:1264)
    at me.iPoke111.reaper.Reaper.onCommand(Reaper.java:141)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
    ... 15 more

 

In your Workbench error, you get this line:

Code:

me.iPoke111.reaper.Reaper.onCommand(Reaper.java:127)

Look at line 127 of your Reaper class and tell us what it is, because it is NULL

In your Furnace error, you get this line:

Code:

me.iPoke111.reaper.Reaper.onCommand(Reaper.java:141)

Another NULL

So if you can paste your whole code with the java=syntax instead of code it will tell us each line easier or you can just tell us which lines are which.

 

ok then c:
I will post the relevant blocks again, but with line numbers
code:

Code:java

 if(commandLabel.equalsIgnoreCase("bench"))
{
if(!p.hasPermission("pokereaper.craft"))
{
p.sendMessage(ChatColor.RED + "You don't have the permission " + ChatColor.YELLOW + "pokereaper.craft" + ChatColor.RED + ".");
}
else
{
127 Inventory craft = p.getServer().createInventory(null, WORKBENCH);
p.openInventory(craft);
}
}
if(commandLabel.equalsIgnoreCase("furnace"))
{
if(!p.hasPermission("pokereaper.craft"))
{
p.sendMessage(ChatColor.RED + "You don't have the permission " + ChatColor.YELLOW + "pokereaper.craft" + ChatColor.RED + ".");
}
else
{
if(y == 1)
{
141 furnace = p.getServer().createInventory(null, FURNACE);
y = 0;
}
p.openInventory(furnace);
}
}

 

iPoke111
use

Code:

Inventory furnace = p.getServer().createInventory(null, FURNACE);

 

^ I have a field set up earlier as public InventoryType WORKBENCH (also with FURNACE) and also a field Inventory furnace; so I don't need to define it as a variable. I got help though, thanks ^^

 

I'm guessing that your player variable (p) is null. Could you post your entire onCommand method?

 

I apprectiate your trying to help, but I already got help and sorted it out. Both the workbench and the furnace are now working. Only thing I need to do now is get the furnace to smelt, as it is not doing that currently. It is just showing the window.

 

Have you ever heard of a boolean? Google it, and stop using an int.

 

.-. ok. I am new to Java and am just trying to work my way around a code. I know that its definitely not the most efficient way of coding this, but it works, and when I actually get decent at Java I will make all my code efficient. I will change it, but I'm still very new here ^^

 

it's must be

Code:

Inventory furnace = Bukkit.createInventory(null, InventoryType.FURNACE);

sorry for my bad english iam from holland

 

theminerrick
I appreciate the help, but that's kind of a necrobump .-.

 

iPoke111

If this thread is solved changed it to solved, means people wont keep posting