[1.14] Patching method with coremod in TreeFeature causes IncompatibleClassChangeError

[thedarkcolour]

I'm using a coremod as part of my 1.14 mod. It inserts a static method call into TreeFeature#place.

When I try to load into a world, an IncompatibleClassChangeError is thrown from a Server Worker thread, saying "expected static method  thedarkcolour.futuremc.world.gen.BeeNestGenerator.generateBeeNestForSmallTrees..." The game freezes instead of crashing.

 

How do I fix this?

 

Log

Coremod

[DaemonUmbra]

The most important line in that log seems cut off, did you copy/paste or did you directly upload the file?

[thedarkcolour]

I copy pasted it. Do you mean that the method name is cut off? It's also cut off in the log file.

[DaemonUmbra]

When you say the log file do you mean console or do you mean in the debug.log file?

[thedarkcolour]

Both

[DaemonUmbra]

Do you have experience with Java bytecode?

[thedarkcolour]

Yes. I've written a working coremod in 1.12 that did a similar patch.

[thedarkcolour]

The exception message is also cut off in the debugger.

[thedarkcolour]

It seems to be an issue with multi-threading. I'm not sure if I can patch somewhere else to avoid this, but it seems to be out of my control.

 

[thedarkcolour]

I think I posted this topic in the wrong spot. Should I go post in Modder Support?

[thedarkcolour]

BeeNestGenerator class

[thedarkcolour]

I just realized what I've done. I forgot to make the BeeNestGenerator method static. I'll check if that fixes it.

Edited December 5, 2019 by thedarkcolour

[thedarkcolour]

Now it just freezes with no error at all.

[thedarkcolour]

https://github.com/thedarkcolour/Future-MC/tree/1.14

[thedarkcolour]

Am I able to setBlockState with IWorldGenerationReader?

[thedarkcolour]

I got it to work by not calling getWorld() and using IWorldGenerationReader#setBlockState, thanks!