World crashing bug: BC2 + EE condensors and RM furnaces

[Wolvenmoon]

Additional mods beyond Tekkit are the Bukkit mods Anticreeper and dynmap. The client is the development version with no extra mods and the server is the latest available.

The error message is:

2012-03-17 17:08:45 [iNFO] CommandBook: 0 banned name(s) loaded.

2012-03-17 17:08:45 [iNFO] CommandBook: 1 kit(s) loaded.

2012-03-17 17:08:45 [iNFO] WEPIF: Using the Bukkit Permissions API.

2012-03-17 17:08:45 [iNFO] Server permissions file permissions.yml is empty, ignoring it

2012-03-17 17:08:45 [iNFO] Done (4.767s)! For help, type "help" or "?"

2012-03-17 17:08:45 [FINER] Railcraft Buildcraft Module {0}: Buildcraft Detected, creating Tank Cart and Liquid Loader recipes.

2012-03-17 17:08:45 [FINER] Railcraft IC2 Module {0}: IC2 Detected, creating MFE Cart and Energy Loader recipes.

2012-03-17 17:08:45 [FINE] EquivalentExchange has loaded RP2 ores, plants, trees and stone blocks.

2012-03-17 17:08:45 [iNFO] RP2 Core successfully loaded in EE.

2012-03-17 17:08:45 [FINE] EquivalentExchange has loaded RP2 ores, plants, trees and stone blocks.

2012-03-17 17:08:45 [iNFO] RP2 World successfully loaded in EE.

2012-03-17 17:08:46 [iNFO] [AdditionalPipes] Loaded 18 Forced Chunks

2012-03-17 17:08:46 [sEVERE] java.lang.NullPointerException

2012-03-17 17:08:46 [sEVERE] at net.minecraft.server.ItemStack.doMaterialsMatch(ItemStack.java:243)

2012-03-17 17:08:46 [sEVERE] at ee.TileCondenser.extractItem(TileCondenser.java:539)

2012-03-17 17:08:46 [sEVERE] at buildcraft.transport.pipes.PipeItemsWood.checkExtract(PipeItemsWood.java:111)

2012-03-17 17:08:46 [sEVERE] at buildcraft.transport.pipes.PipeItemsWood.doWork(PipeItemsWood.java:90)

2012-03-17 17:08:46 [sEVERE] at buildcraft.transport.TileGenericPipe.doWork(TileGenericPipe.java:159)

2012-03-17 17:08:46 [sEVERE] at buildcraft.api.PowerProvider.update(PowerProvider.java:52)

2012-03-17 17:08:46 [sEVERE] at buildcraft.transport.TileGenericPipe.l_(TileGenericPipe.java:108)

2012-03-17 17:08:46 [sEVERE] at net.minecraft.server.World.tickEntities(World.java:1182)

2012-03-17 17:08:46 [sEVERE] at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:534)

2012-03-17 17:08:46 [sEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:441)

2012-03-17 17:08:46 [sEVERE] at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)

2012-03-17 17:08:46 [sEVERE] Unexpected exception

java.lang.NullPointerException

at net.minecraft.server.ItemStack.doMaterialsMatch(ItemStack.java:243)

at ee.TileCondenser.extractItem(TileCondenser.java:539)

at buildcraft.transport.pipes.PipeItemsWood.checkExtract(PipeItemsWood.java:111)

at buildcraft.transport.pipes.PipeItemsWood.doWork(PipeItemsWood.java:90)

at buildcraft.transport.TileGenericPipe.doWork(TileGenericPipe.java:159)

at buildcraft.api.PowerProvider.update(PowerProvider.java:52)

at buildcraft.transport.TileGenericPipe.l_(TileGenericPipe.java:108)

at net.minecraft.server.World.tickEntities(World.java:1182)

at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:534)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:441)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)

What I did was set up a factory with the following configuration:

EE mod energy collectors on EE mod relays on EE mod condensors with BC2 wooden pipes and redstone engines and golden pipes that were turned on by wireless redstone receivers with one of these transferring to an item teleport pipe. This item teleport pipe put the item (iron) in to a loop that split it via a distribution pipe in to two EE mod red matter furnaces which were set next to a single alchemical chest. This alchemical chest had a wooden pipe with two redstone engines pumping out of it.

This did not crash with the redstone engines working on the empty alchemical chest. None of the condensors had their redstone engines activated for quite some time, and it was all quiet. I went and made the wireless transmitters, then I hit THE SWITCH (caps lock for evil science that backfired but was totally awesome at the time) to turn it on.

I went over and looked, it looked like things were pumping out of the condensors alright. So I gave myself a congratulatory pat on the back then went over to check the furnaces. I saw that the redstone engines had froze, I got that face that Tekkiters get the instant they see a creeper pull up next to their bank of MFSUs, and then I got disconnected.

I restarted the server, I cannot reconnect. What should I do?

[Wolvenmoon]

I used MCedit to delete most of what I'd done, but I knew exactly which purple blobs I was looking to delete. It works now, but it's still a pretty deadly glitch.

[KakerMix]

You know what else is bad? Not using the bug report format. That's REALLY bad, like, woah, rad bad. :allears: