2013-03-30 23:46:50 [sEVERE] Encountered an unexpected exception t
t: Exception while updating neighbours
> at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:951)
> at ho.r(DedicatedServer.java:309)
> at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:857)
> at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:744)
> at fy.run(ThreadMinecraftServer.java:16)
Caused by: java.lang.NullPointerException
> at gcewing.lighting.Floodlight.setBeamIntensity(Floodlight.java:141)
> at gcewing.lighting.Floodlight.propagateBeam(Floodlight.java:108)
> at gcewing.lighting.Floodlight.updateBeamInDirection(Floodlight.java:29)
> at gcewing.lighting.Floodlight.updateBeams(Floodlight.java:21)
> at gcewing.lighting.BlockFloodlightBeam.a(BlockFloodlightBeam.java:81)
> at yc.m(World.java:1102)
> at yc.h(World.java:1069)
> at yc.f(World.java:1009)
> at yc.e(World.java:967)
> at forestry.arboriculture.gadgets.BlockLeaves.removeLeaves(BlockLeaves.java:80)
> at forestry.arboriculture.gadgets.BlockLeaves.b(BlockLeaves.java:245)
> at in.g(WorldServer.java:603)
> at in.b(WorldServer.java:312)
> at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:945)
> ... 4 more
I'm getting this error from time to time which completely crashes the server. Any ideas?