HumanSkeleton race condition #268

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MrUnknownDE · 2026-04-05T18:13:50+02:00

MrUnknownDE commented

2026-04-05 18:13:50 +02:00

Originally created by @ButterscotchV on 9/4/2025

There seems to be a race condition with HumanSkeleton. I experienced a NullPointerException after a null check in Constraint, this is likely due to the skeleton being disassembled in HumanSkeleton.assembleSkeletonArms() from HumanSkeleton.updateToggleState() with SkeletonConfigToggles.FORCE_ARMS_FROM_HMD, called by RPCSettingsHandler.onChangeSettingsRequest() on the RPC thread.

*Originally created by @ButterscotchV on 9/4/2025* There seems to be a race condition with HumanSkeleton. I experienced a NullPointerException after a null check in `Constraint`, this is likely due to the skeleton being disassembled in `HumanSkeleton.assembleSkeletonArms()` from `HumanSkeleton.updateToggleState()` with `SkeletonConfigToggles.FORCE_ARMS_FROM_HMD`, called by `RPCSettingsHandler.onChangeSettingsRequest()` on the RPC thread. <img width="987" height="291" alt="Image" src="https://github.com/user-attachments/assets/3c539b19-5479-4c48-928c-ed81fc1c517b" />

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Reference: github/SlimeVR-Server#268