Solved My Plugin isn't working...

Hey guys,

Absolutelly nothing happens and I'm confused... Can someone please help?
All I'm supposed to have so far is the following:

• Player gets randomly placed on either Alien or Predator Team.
• Player received a book to change teams.
• Command to check which team player is placed on.

Here's the code:



I know it's a lot of code but if someone took the time to read through it to find whatever it is I did wrong, many many thanks to you!

Cheers.

 

Add debugging code, such as
Bukkit.broadcastMessage("1")
to figure out where your server breaks

 

add @EventHandler over your public void part.

 

Alright so I forgot to add @EventHandler before onPlayerJoin. Thanks, that debugging thing helps a lot!

So now the only thing not working is the Book Part.

I received the Book and Team upon login but when I click the book it doesn't change teams, there's probably an error there since it doesn't break.
Also the /whatteam command isn't working, this error shows up:

Code:

[01:24:16 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'what
team' in plugin AVP v1.0
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[cra
ftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:17
5) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServe
r.java:683) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.PlayerConnection.handleCommand(PlayerCon
nection.java:952) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java
:814) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.PacketPlayInChat.a(PacketPlayInChat.java
:28) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.PacketPlayInChat.handle(PacketPlayInChat
.java:47) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:146
) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.ServerConnection.c(SourceFile:134) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:6
55) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:2
50) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:5
45) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java
:457) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:6
17) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
Caused by: java.lang.NullPointerException
        at me.rafagatofofo.AVP.AVPMain.onCommand(AVPMain.java:114) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[cra
ftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        ... 13 more
>
[01:25:23 INFO]: Unknown command. Type "help" for help.
>

 

RAFA_GATO_FOFO

Code:java

Team.getTeamType(((Player) sender))

is returning null for you, so when you call .name on that null value it throws the NPE.

 

SainttX
When I connect it shows in chat that I've joined either of the teams, so I'm guessing the assigning is done correctly. Why is it returning null then?

 

I'll start off by saying that storing players ANYWHERE is bad practice - it can cause errors and memory leaks. Use player names or UUID's exclusively.

 

Zethariel

I'm adding player.getName(); not the full data.

EDIT:

The command is working now, there was a small error in the getTeamType command.
My only problem now lies in this part of the code. If the player joins Team Alien, when he clicks the Book he gets placed on the Alien Team again instead of the Predator Team.

If the player gets placed on Team Predator on join he can join Team Alien though.




Solved. Thanks for those who helped.