PaperMC / PaperMC/DataConverter

Failed to convert json to nbt

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#26 5 comments 0 reactions 0 assignees View on GitHub

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Dominant language
Java
Stars
75
Forks
11
PR merge metrics
No merged PRs in 30d

Description

Stack trace

https://mclo.gs/XtdkdPx

Plugin and Datapack List

Paper Plugins (4):
CraftBook5, HuskHomes, LiteEco
Bukkit Plugins (31):
ChunkSpawnerLimiter, Chunky, ColoredSigns, CommandBook, DiscordSRV, FarmControl, FlyingCarpet, LogBlock, LogBlockQuestioner, LuckPerms, LWC, mcMMO, Multiverse-Core, Multiverse-Portals, OpenInv, ProtocolLib, QuickShop-Hikari, RedstoneClockDetector, SignRewards, TitleManager, VanishNoPacket, Vault, VaultChatFormatter, ViaVersion, Votifier, WorldBorder, WorldEdit, WorldGuard, ZHorse

Actions to reproduce (if known)

No response

Paper version

This server is running Paper version 1.21.6-46-main@35b2c6e (2025-06-26T18:53:41Z) (Implementing API version 1.21.6-R0.1-SNAPSHOT)

Other

I haven't done force-upgrade recently. Not sure when last but it should be a few major versions ago.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the stack trace at https://mclo.gs/XtdkdPx and compare it with the DataConverter code used by Paper 1.21.6-46. No source file, test, or reproduction steps are named, so first identify the JSON-to-NBT conversion entry point and reproduce the failure. Done means the reported conversion succeeds and a regression test covers it.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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