please help anyone seen this error?

Server is a windows machine x86, past that i know very little about the server, get this on startup

Code:

2011-02-04 15:05:56 [SEVERE] Unexpected exception
java.lang.NullPointerException
    at net.minecraft.server.WorldServer.b(WorldServer.java:97)
    at net.minecraft.server.World.a(SourceFile:1659)
    at net.minecraft.server.Chunk.d(Chunk.java:501)
    at net.minecraft.server.ChunkProviderServer.d(ChunkProviderServer.java:72)
    at net.minecraft.server.ChunkProviderServer.b(ChunkProviderServer.java:111)
    at net.minecraft.server.World.c(SourceFile:417)
    at net.minecraft.server.World.getTypeId(SourceFile:374)
    at net.minecraft.server.World.isEmpty(SourceFile:378)
    at net.minecraft.server.World.a(SourceFile:282)
    at net.minecraft.server.WorldProvider.a(SourceFile:52)
    at net.minecraft.server.World.<init>(SourceFile:255)
    at net.minecraft.server.WorldServer.<init>(WorldServer.java:27)
    at net.minecraft.server.MinecraftServer.c(MinecraftServer.java:111)
    at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:104)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:186)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:512)

 

What did you changed?
Try without plugins, then without bukkit if it does not help. In the extreme case of still having an error then, try renaming your world folder and regenerating a new one to test.

 

stopped server to change the server.properties upon restart keep getting this error, went back to the old server.properties same errror

 

Could be the map then, try the thing I suggested, but you can try the map first.

 

ok removed plugins-no dice. made new map - worked. dl'd map and put it in mcedit found a few chunks that were messed up removed them then recreated chunks. tested and works. so if your map is corrupted there is hope...hope this helps ppl