another null pointer exception..

craftbukkit 114

Code:

java.lang.NullPointerException
        at net.minecraft.server.EntityBoat.a(EntityBoat.java:100)
        at net.minecraft.server.BlockCactus.a(BlockCactus.java:117)
        at net.minecraft.server.Entity.c(Entity.java:479)
        at net.minecraft.server.EntityBoat.b_(EntityBoat.java:226)
        at net.minecraft.server.World.a(SourceFile:1116)
        at net.minecraft.server.WorldServer.a(WorldServer.java:41)
        at net.minecraft.server.World.f(SourceFile:1092)
        at net.minecraft.server.World.c(SourceFile:1071)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:260)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:197)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:512)
2011-01-20 22:26:45 [SEVERE] Unexpected exception
java.lang.NullPointerException
        at net.minecraft.server.EntityBoat.a(EntityBoat.java:100)
        at net.minecraft.server.BlockCactus.a(BlockCactus.java:117)
        at net.minecraft.server.Entity.c(Entity.java:479)
        at net.minecraft.server.EntityBoat.b_(EntityBoat.java:226)
        at net.minecraft.server.World.a(SourceFile:1116)
        at net.minecraft.server.WorldServer.a(WorldServer.java:41)
        at net.minecraft.server.World.f(SourceFile:1092)
        at net.minecraft.server.World.c(SourceFile:1071)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:260)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:197)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:512)

 

I got this too. The world doesn't seem to load anymore.

EDIT: Solved
First of all don't let boats run into cacti?
Idk why. And then download BoatKiller: http://www.minecraftforum.net/viewtopic.php?f=1012&t=82837

Place it in your server folder, turn off the server, and run it.
My map works now!