Unable to execute commands in console before worlds are loaded #13580
Description
Expected behavior
All commands executed w/o issues after the server is done loading.
Observed/Actual behavior
Command exception: /version
java.lang.NullPointerException: Cannot invoke "net.minecraft.server.level.ServerLevel.getGameRules()" because the return value of "net.minecraft.commands.CommandSourceStack.getLevel()" is null
at net.minecraft.commands.Commands.executeCommandInContext(Commands.java:462) ~[paper-1.21.11.jar:1.21.11-90-4b35f5c]
at net.minecraft.commands.Commands.performCommand(Commands.java:374) ~[paper-1.21.11.jar:1.21.11-90-4b35f5c]
at net.minecraft.commands.Commands.performCommand(Commands.java:362) ~[paper-1.21.11.jar:1.21.11-90-4b35f5c]
at net.minecraft.commands.Commands.performPrefixedCommand(Commands.java:353) ~[paper-1.21.11.jar:1.21.11-90-4b35f5c]
at net.minecraft.server.dedicated.DedicatedServer.handleConsoleInputs(DedicatedServer.java:594) ~[paper-1.21.11.jar:1.21.11-90-4b35f5c]
at net.minecraft.server.dedicated.DedicatedServer.tickConnection(DedicatedServer.java:550) ~[paper-1.21.11.jar:1.21.11-90-4b35f5c]
at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1838) ~[paper-1.21.11.jar:1.21.11-90-4b35f5c]
at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1616) ~[paper-1.21.11.jar:1.21.11-90-4b35f5c]
at net.minecraft.server.dedicated.DedicatedServer.tickServer(DedicatedServer.java:427) ~[paper-1.21.11.jar:1.21.11-90-4b35f5c]
at net.minecraft.server.MinecraftServer.processPacketsAndTick(MinecraftServer.java:1672) ~[paper-1.21.11.jar:1.21.11-90-4b35f5c]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1340) ~[paper-1.21.11.jar:1.21.11-90-4b35f5c]
at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:388) ~[paper-1.21.11.jar:1.21.11-90-4b35f5c]
at java.base/java.lang.Thread.run(Thread.java:1474) ~[?:?]
An unexpected error occurred trying to execute that command
Steps/models to reproduce
1. Install Windows Server 2025
2. Install Java 25
3. Download Paper from https://papermc.io/downloads/paper
4. Create a start script using https://docs.papermc.io/misc/tools/start-script-gen/
5. Run the server using generated script
6. Accept Mojang EULA
7. Download some plugins (at least 10) so that it takes some time to start the server
8. Run the server using the script again
9. During loading of the server, execute any command (i.e. version)
10. Wait for the server to finish loading & enabling plugins
11. Meet the exception
Plugin and Datapack List
As I understand it, list of plugins doesn't matter.
There are 3 data pack(s) enabled: [vanilla (built-in)], [paper (built-in)], [file/Bukkit (world)]]
There are no more data packs available
Paper version
This server is running Paper version 1.21.11-90-main@4b35f5c (2026-01-09T18:48:48Z) (Implementing API version 1.21.11-R0.1-SNAPSHOT)
You are 9 version(s) behind
Other
No response