Bukkit

What steps will reproduce the problem?
1. Enter an area nobody has been to before, so it will generate the chunk.
2.
3.

What is the expected output? What do you see instead?
Expect it to just work, but server crashes.

What version of the product are you using?
5.2.7

What version of the craftbukkit/bukkit are you using?
Spigot 1.9 build 634

Do you have an error log of what happened?
java.lang.NoSuchFieldError: MUSHROOM_SHORE
    at multiworld.worldgen.populators.MyceliumPopulator.chanceBlock(MyceliumPopulator.java:22)
    at multiworld.worldgen.populators.SurfacePopulator.populate(SurfacePopulator.java:28)
    at net.minecraft.server.v1_9_R1.Chunk.a(Chunk.java:944)
    at net.minecraft.server.v1_9_R1.Chunk.loadNearby(Chunk.java:905)
    at org.bukkit.craftbukkit.v1_9_R1.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:73)
    at org.bukkit.craftbukkit.v1_9_R1.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:1)
    at org.bukkit.craftbukkit.v1_9_R1.util.AsynchronousExecutor$Task.finish(AsynchronousExecutor.java:188)
    at org.bukkit.craftbukkit.v1_9_R1.util.AsynchronousExecutor.finishActive(AsynchronousExecutor.java:347)
    at org.bukkit.craftbukkit.v1_9_R1.chunkio.ChunkIOExecutor.tick(ChunkIOExecutor.java:34)
    at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:740)
    at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400)
    at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660)
    at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559)
    at java.lang.Thread.run(Thread.java:745)

Please provide the result of /mw debug below:
[17:18:31 INFO]: [MultiWorld] Now printing debug information
[17:18:31 INFO]: [MultiWorld] MultiWorld version: 5.2.7
[17:18:31 INFO]: [MultiWorld] Bukkit version: git-Spigot-87e2f47-ef13ca4 (MC: 1.9)
[17:18:31 INFO]: [MultiWorld]
[17:18:31 INFO]: [MultiWorld] --<[Modules]>--
[17:18:31 INFO]: [MultiWorld] [State, pluginName]
[17:18:31 INFO]: [MultiWorld] [Working, EndPortalHandler]
[17:18:31 INFO]: [MultiWorld] [Unloaded, EnderChestBlokker]
[17:18:31 INFO]: [MultiWorld] [Working, WorldChatSeperatorPlugin]
[17:18:31 INFO]: [MultiWorld] [Unloaded, GameModeChancer]
[17:18:31 INFO]: [MultiWorld] [Working, WorldSpawnHandler]
[17:18:31 INFO]: [MultiWorld] [Working, NetherPortalHandler]
[17:18:31 INFO]: [MultiWorld]
[17:18:31 INFO]: [MultiWorld] --<[CommandStacks]>--
[17:18:31 INFO]: [MultiWorld] multiworld.command.DefaultCommandStack
[17:18:31 INFO]: [MultiWorld]  - /mw []
[17:18:31 INFO]: [MultiWorld] multiworld.command.DefaultCommandStack
[17:18:31 INFO]: [MultiWorld]  - /mw [debug]

I fixed this myself. You should be able to do the same. Fortunately the newest multiworld has the source included. I pulled it into Eclipse and edited line 22 of the MyceliumPopulator.java file to remove the reference to MUSHROOM_SHORE, which is apparently an element that does not exist. Line 22 now reads...

if (block.getBiome() == Biome.MUSHROOM_ISLAND)

(The "or" condition and the second constant MUSHROOM_SHORE I removed.)

I recompiled and re-exported the multiworld jar and everything appears to work fine now.

I will send the fix to the author. Should take him a very short time to post the fix.

I am still getting this error.

@jamescowens: Go

jamescowens can you share your updated jar? I'm currently having the same issues. Thanks

@pandapipino: Go

This bug should be fixed with version 5.2.8, uploaded a fe weeks ago