[BUG 1.62 SMP] Server crash on new terrain generation

1st Official Post

    Hi,
    Today I upgraded to the 1.1 Version of Minecraft and I have Industrialcraft 2, Buildcraft and Red Power 2 running on my server.

    In some cases the server tries to generate a new terrain area I receive the following problem:

    I hope you can help me.

    Indeed, I also get this error on SMP, but on single-player my rubber-wood trees don't seem to have a problem...

    Display Spoiler

    2012-01-23 18:32:02 [WARNING] Failed to handle packet: java.lang.NullPointerExce
    ption
    java.lang.NullPointerException
    at ic2.common.WorldGenRubTree.grow(WorldGenRubTree.java:60)
    at ic2.common.WorldGenRubTree.a(WorldGenRubTree.java:32)
    at mod_IC2.GenerateSurface(mod_IC2.java:1249)
    at ModLoader.PopulateChunk(ModLoader.java:796)
    at li.a(ChunkProviderServer.java:178 )
    at lq.a(Chunk.java:855)
    at li.c(ChunkProviderServer.java:89)
    at an.<init>(SourceFile:31)
    at xf.a(SourceFile:187)
    at xf.c(SourceFile:310)
    at ig.d(SourceFile:111)
    at lf.a(NetServerHandler.java:250)
    at iu.a(SourceFile:126)
    at pd.b(SourceFile:271)
    at lf.a(NetServerHandler.java:47)
    at ew.a(SourceFile:108 )
    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:446)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:346) at cz.run(SourceFile:465)

    Actually I managed to start the server, but all IC2-Items do not exist and DC if I try to craft them and the Server crashes if I go scout for rubber-trees. And of course neither Copper nor Tin get created.

    We are experiencing the same problem on our server.. Trying to craft a treetrap results in End Of Stream in the client. Generating a world makes the same error reported earlier in this thread (NullPointerException when generating rubber trees).