jimfs not found if many mods are loaded - race condition?

[LucilleTea]

The error in question: message(27).txt

This error occurs on Java 15.0.1 and 15.0.0.36, but not Java 14.0.1.7. It occurs with a combination of mods loaded, it's hard to narrow down a specific combination.

It's always reproducible with this mod list: [✔️] cadmium-fabric-0.1.0-lucilletea.1 [✔️] fabric-api-0.25.1+build.416-1.16 [✔️] hydrogen-fabric-mc1.16.4-0.1.2-SNAPSHOT [✔️] lithium-fabric-mc1.16.4-0.6.0 [✔️] notenoughcrashes-2.1.4+1.16.4 [✔️] phosphor-fabric-mc1.16.1-0.6.0+build.7 [✔️] sodium-fabric-mc1.16.4-0.1.1-SNAPSHOT [✔️] voyager-1.0.0 [✔️] Xaeros_Minimap_20.27.2.1_Fabric_1.16.4 [✔️] XaerosWorldMap_1.11.0_Fabric_1.16.4

It will also occur with any one of Hydrogen, Lithium, and Phosphor disabled, but not when all of them are disabled.

We get some extra errors with Not Enough Crashes disabled: https://paste.ee/p/Uy01x

[LucilleTea]

The issue reportedly also occurs on Java 14.0.2+12.

[ImperatorStorm]

Confirmed reproducible on OpenJDK Runtime Environment GraalVM CE 20.3.0 (build 11.0.9+10-jvmci-20.3-b06)

[LucilleTea]

Occurs on OpenJDK 11.0.9.1 with this log: https://paste.ee/p/mu35T Reported by Snivyer

[DragonEggBedrockBreaking]

Occurs on OpenJDK 11.0.9 confirmed.

[Snivine]

seems to occur in all versions that are not JDK/JRE 8

[squishycat92]

Can confirm on AdoptOpenJDK 15.0.1.9 Hotspot.

[DragonEggBedrockBreaking]

Can confirm on AdoptOpenJDK 16

[Snivine]

This still hasn't been addressed afaik, so it makes sense is still occuring, tho I'd see that maybe newer JDK/JRE versions can indirectly fix this