Use undashed UUIDs for skin profile requests#802
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TBlueF merged 1 commit intoMay 23, 2026
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Summary
Use the undashed UUID form when requesting player profile data from the Mojang session server in
MojangSkinProvider.Why
The session profile endpoint commonly expects UUIDs without hyphens. Using
UUID.toString()sends the dashed form, which can fail with Yggdrasil-compatible/session-server implementations that only accept the canonical undashed profile id format. In that case BlueMap cannot download the skin and never writes the playerhead asset.This keeps BlueMap's internal UUID handling and playerhead asset names unchanged; it only normalizes the UUID for the outbound session profile request.
Testing
v5.7codebase with Java 21:./gradlew :neoforge:release --no-daemon