This world generation bug: Server Looping Tick crash causes worlds not to be loaded during the creation process. I have no clue why it's doing this, but it needs to be fixed so world loading/creation works.
---- Minecraft Crash Report ----
// Don't do that.
Time: 2/15/18 6:15 PM
Description: Exception in server tick loop
java.lang.NullPointerException: Exception in server tick loop
at aug.a(SourceFile:375)
at bih.e(SourceFile:58)
at bih.<init>(SourceFile:44)
at bhx.o(SourceFile:46)
at rx.o(SourceFile:719)
at rx.<init>(SourceFile:127)
at cvz.a(SourceFile:96)
at cvz.d(SourceFile:131)
at net.minecraft.server.MinecraftServer.run(SourceFile:502)
at java.lang.Thread.run(Thread.java:745)
A detailed walkthrough of the error, its code path and all known details is as follows:
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-- System Details --
Details:
Minecraft Version: 18w07b
Operating System: Mac OS X (x86_64) version 10.13.2
Java Version: 1.8.0_74, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 167885216 bytes (160 MB) / 268435456 bytes (256 MB) up to 2147483648 bytes (2048 MB)
JVM Flags: 7 total; -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Profiler Position: N/A (disabled)
Player Count: 0 / 8; []
Data Packs: vanilla
Type: Integrated Server (map_client.txt)
Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.Linked issues
duplicates 1
Attachments
Comments 5
I've been trying to figure this one out, and I think I may know the cause finally through some experimentation.
This occurs (for me anyway) whenever I have a world with an endless water border.
How to recreate:
1. Open up World Painter and create a quick world.
2. In the World export options, under world border, select water and select endless. (I also normally have the map's water height at 20, and the type should switch to a Superflat world)
3. Export the world, and attempt to load in 18w07b
4. Check the launcher log and crash report when the game hangs on "Loading World". You will need to exit the game via the task manager.
Other worlds created will still work fine, if they don't have an endless superflat border. Maybe some borders might work, but not the settings I've been using.
Sounds like MC-124972.
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