Bukkit

Sometimes after a restart, each player joining triggers an error:

12:32:26 [SEVERE] Could not pass event PlayerJoinEvent to FunnyHeads
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:341)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
        at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:35)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
        at net.minecraft.server.ServerConfigurationManagerAbstract.c(ServerConfigurationManagerAbstract.java:161)
        at net.minecraft.server.ServerConfigurationManagerAbstract.a(ServerConfigurationManagerAbstract.java:92)
        at net.minecraft.server.NetLoginHandler.d(NetLoginHandler.java:129)
        at net.minecraft.server.NetLoginHandler.c(NetLoginHandler.java:42)
        at net.minecraft.server.DedicatedServerConnectionThread.a(DedicatedServerConnectionThread.java:44)
        at net.minecraft.server.DedicatedServerConnection.b(SourceFile:29)
        at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:577)
        at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:213)
        at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:473)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:405)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
        at FunnyHeads.FunnyHeads.onPlayerJoin(FunnyHeads.java:326)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:601)
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:339)
        ... 15 more

hey ;) hopefully i can fix this bug soon, but i can't promise anything because i have not much time... also this bug has already been reported, here is the link to the ticket: http://dev.bukkit.org/server-mods/funnyheads/tickets/1-nullpointer-exception/

try out what i wrote there!