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Player detector throws a NullPointerException when the player is in a team #853

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Player detector throws a NullPointerException when the player is in a team#853
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Fixed/Added in devbugSomething isn't working

Description

@leoplunger
leoplunger
opened on Oct 22, 2026

Describe

When player is in a team of any kind created by the command /team the getPlayer(name, true) returns a NullPointerException while getPlayer(name) doesnt

Steps to reproduce

  1. create a team via /team add name
  2. join that team via /team join name
  3. use the getPlayer function on yourself with the detailed parameter set to true

Multiplayer?

No

Version

1.21.1-0.8.2a (Latest 1.21.1)

Minecraft, Forge and maybe other related mods versions

Neoforge 21.1.256 Minecraft 1.21.1

Screenshots or Videos

No response

Crashlog/log

No response

Activity

  1. leoplunger
    added
    bugSomething isn't working
    needs reviewNeeds review from an Contributor
    on Oct 22, 2026

  2. zyxkad commented on Oct 22, 2026

    @zyxkad
    zyxkad
    on Oct 22, 2026
    Collaborator

    Would you mind provide server log for easier problem tracing?

  3. leoplunger commented on Oct 22, 2026

    @leoplunger
    leoplunger
    on Oct 22, 2026
    Author

    this isnt multiplayer, but I can host a server locally do I need to do that or what?

  4. leoplunger commented on Oct 22, 2026

    @leoplunger
    leoplunger
    on Oct 22, 2026
    Author

    wait nvm here

    [20:21:42] [Server thread/INFO] [minecraft/MinecraftServer]: [leo_plunger: Created team [123]]
[20:21:42] [Render thread/INFO] [minecraft/ChatComponent]: [System] [CHAT] Created team [123]
[20:21:44] [Server thread/INFO] [minecraft/MinecraftServer]: [leo_plunger: Added leo_plunger to team [123]]
[20:21:44] [Render thread/INFO] [minecraft/ChatComponent]: [System] [CHAT] Added leo_plunger to team [123]
[20:21:52] [Server thread/ERROR] [da.co.co.co.LuaContext/COMPUTER_ERROR.JAVA]: Error running task
java.lang.NullPointerException: null
	at java.base/java.util.Objects.requireNonNull(Objects.java:233) ~[?:?] {}
	at java.base/java.util.ImmutableCollections$MapN.<init>(ImmutableCollections.java:1193) ~[?:?] {}
	at java.base/java.util.Map.of(Map.java:1385) ~[?:?] {}
	at TRANSFORMER/advancedperipherals@1.21.1-0.8.2a/de.srendi.advancedperipherals.common.util.LuaConverter.teamToLua(LuaConverter.java:496) ~[AdvancedPeripherals-1.21.1-0.8.2a.jar%23220!/:1.21.1-0.8.2a] {re:classloading}
	at TRANSFORMER/advancedperipherals@1.21.1-0.8.2a/de.srendi.advancedperipherals.common.util.LuaConverter.lambda$registerDefaultEntityConverters$1(LuaConverter.java:176) ~[AdvancedPeripherals-1.21.1-0.8.2a.jar%23220!/:1.21.1-0.8.2a] {re:classloading}
	at TRANSFORMER/advancedperipherals@1.21.1-0.8.2a/de.srendi.advancedperipherals.common.util.LuaConverter.entityToLua(LuaConverter.java:138) ~[AdvancedPeripherals-1.21.1-0.8.2a.jar%23220!/:1.21.1-0.8.2a] {re:classloading}
	at TRANSFORMER/advancedperipherals@1.21.1-0.8.2a/de.srendi.advancedperipherals.common.addons.computercraft.peripheral.PlayerDetectorPeripheral.getPlayerInfo(PlayerDetectorPeripheral.java:189) ~[AdvancedPeripherals-1.21.1-0.8.2a.jar%23220!/:1.21.1-0.8.2a] {re:classloading}
	at TRANSFORMER/advancedperipherals@1.21.1-0.8.2a/de.srendi.advancedperipherals.common.addons.computercraft.peripheral.PlayerDetectorPeripheral.getPlayerLua(PlayerDetectorPeripheral.java:174) ~[AdvancedPeripherals-1.21.1-0.8.2a.jar%23220!/:1.21.1-0.8.2a] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.asm.PeripheralMethodSupplier.lambda$static$1(PeripheralMethodSupplier.java:28) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23226!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.asm.PeripheralMethodSupplier.lambda$static$4(PeripheralMethodSupplier.java:35) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23226!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.api.lua.TaskCallback.execute(TaskCallback.java:28) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23226!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.computer.GuardedLuaContext.lambda$issueMainThreadTask$0(GuardedLuaContext.java:45) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23226!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.computer.GuardedLuaContext.lambda$issueMainThreadTask$0(GuardedLuaContext.java:45) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23226!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.computer.LuaContext.lambda$issueMainThreadTask$0(LuaContext.java:29) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23226!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.computer.mainthread.MainThreadExecutor.execute(MainThreadExecutor.java:138) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23226!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.core.computer.mainthread.MainThread.tick(MainThread.java:139) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23226!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.shared.computer.core.ServerContext.tick(ServerContext.java:154) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23226!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.shared.CommonHooks.onServerTickStart(CommonHooks.java:75) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23226!/:1.120.2] {re:classloading}
	at TRANSFORMER/computercraft@1.120.2/dan200.computercraft.shared.ForgeCommonHooks.onServerTick(ForgeCommonHooks.java:39) ~[cc-tweaked-1.21.1-forge-1.120.2.jar%23226!/:1.120.2] {re:classloading}
	at MC-BOOTSTRAP/net.neoforged.bus/net.neoforged.bus.EventBus.post(EventBus.java:360) ~[bus-8.0.5.jar%23156!/:?] {}
	at MC-BOOTSTRAP/net.neoforged.bus/net.neoforged.bus.EventBus.post(EventBus.java:328) ~[bus-8.0.5.jar%23156!/:?] {}
	at TRANSFORMER/neoforge@21.1.256/net.neoforged.neoforge.event.EventHooks.fireServerTickPre(EventHooks.java:1010) ~[neoforge-21.1.256-universal.jar%23214!/:?] {re:classloading}
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:915) ~[client-1.21.1-20240808.144430-srg.jar%23213!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:ae2.mixins.json:spatial.MinecraftServerMixin from mod ae2,pl:mixin:APP:ponder-common.mixins.json:accessor.MinecraftServerAccessor from mod ponder,pl:mixin:A}
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.server.IntegratedServer.tickServer(IntegratedServer.java:110) ~[client-1.21.1-20240808.144430-srg.jar%23213!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:707) ~[client-1.21.1-20240808.144430-srg.jar%23213!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:ae2.mixins.json:spatial.MinecraftServerMixin from mod ae2,pl:mixin:APP:ponder-common.mixins.json:accessor.MinecraftServerAccessor from mod ponder,pl:mixin:A}
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:267) ~[client-1.21.1-20240808.144430-srg.jar%23213!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:ae2.mixins.json:spatial.MinecraftServerMixin from mod ae2,pl:mixin:APP:ponder-common.mixins.json:accessor.MinecraftServerAccessor from mod ponder,pl:mixin:A}
	at java.base/java.lang.Thread.run(Thread.java:1583) [?:?] {}
  5. zyxkad
    added a commit that references this issue on Oct 22, 2026

    fix getPlayer crash when player in a team without color

    1facf70
  6. zyxkad
    added
    Fixed/Added in dev
    and removed
    needs reviewNeeds review from an Contributor
    on Oct 22, 2026
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