2011-07-03 13:09:52 [INFO] MPUK_cl0ne [/85.236.96.54:2403] logged in with entity id 0 at ([Flatgrass] -230.5, 64.62000000476837, 77.5)
2011-07-03 13:09:52 [SEVERE] Could not pass event PLAYER_JOIN to BukkitContrib
java.lang.NoSuchFieldError: a
        at org.bukkitcontrib.player.ContribCraftPlayer.createInventory(ContribCraftPlayer.java:343)
        at org.bukkitcontrib.player.ContribCraftPlayer.<init>(ContribCraftPlayer.java:73)
        at org.bukkitcontrib.player.ContribCraftPlayer.updateBukkitEntity(ContribCraftPlayer.java:482)
        at org.bukkitcontrib.ContribPlayerListener.onPlayerJoin(ContribPlayerListener.java:24)
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:244)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:321)
        at net.minecraft.server.ServerConfigurationManager.c(ServerConfigurationManager.java:124)
        at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:97)
        at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:33)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:91)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:451)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:361)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)