MinecraftForge VS fernflower

Squirrel: https://github.com/MinecraftForge/MinecraftForge/blob/1.20.x/fmlearlydisplay/src/main/resources/squirrel.png

I found this. Give it a good read. It's kind of old but there might be some kind of help in there. https://github.com/MinecraftForge/MinecraftForge/issues/7558

it crashed bcz of Error java.lang.reflect.InvocationTargetException, probably mods. Also there is Duplicate key exeption, i dont know what caused it - there is a guys on github which had the same issue, try asking for their help: https://github.com/MinecraftForge/MinecraftForge/issues/5556

Does this happen in newly created worlds? Forge had an issue that was patched that caused the removal of dimension mods to break worlds. However it should be working in forge post v43.1.

I looked in LivingEntity and it looked to me like water movement physics are still hardcoded to affect all non-lava fluids in the travel function. https://github.com/MinecraftForge/MinecraftForge/issues/8608 is listed in the fluid API commit as the go-to source for info and it mentions a "fluid motion" setting but I don't see it. I get the feeling the documentation is outdated but that's literally the only documentation I can find anywhere about this api. Very frustrating.

According to this PR, it's been fixed but it's still present in 43.2.2.

Hello! Today I'm happy to announce the release of a project that me and my friends have been working on over the course of the last year, Quiltflower! Originally intended just for use with the QuiltMC toolchain with Minecraft, Quiltflower quickly expanded to be a general purpose java decompiler aiming to create code that is as accurate and clean as possible. If the name sounds familiar it's because Quiltflower is a fork of Fernflower, the (in)famous decompiler that was developed by Stiver, maintained by Jetbrains, and became the default decompiler in Intellij IDEA. Fernflower also quickly found its way into many other tools. After many frustrations with it myself with its decompiled code structuring and quality I decided to do something about it, and here we are! Over the past year, Quiltflower has added support for features such as modern string concatenation, a code formatter, sealed classes, pattern matching, switch expressions, and try-with-resources, and more. Quiltflower also focuses on the code quality of the decompiled output, and takes readability very seriously. We'd greatly appreciate it if you'd give it a try, with our Intellij Plugin or as a standalone jar. While it has come a long way it's still a work in progress, and feedback can be reported on our issue tracker.

You can decompile the classes into .java sourcecode using Fernflower and store that to disk, then use the Attach Sources option to add it to the binary dependency you're using. This allows you to edit the source freely for your reference while continuing to use the original binary.