2011-05-18 10:39:39 [SEVERE] java.lang.NullPointerException
2011-05-18 10:39:39 [SEVERE] 	at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:131)
2011-05-18 10:39:39 [SEVERE] 	at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:358)
2011-05-18 10:39:39 [SEVERE] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:285)
2011-05-18 10:39:39 [SEVERE] 	at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)
2011-05-18 10:39:39 [SEVERE] Unexpected exception
java.lang.NullPointerException
	at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:131)
	at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:358)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:285)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)