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Ledger crashes server after failing to make a log for fluid #370

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Ledger crashes server after failing to make a log for fluid#370
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bugSomething isn't working

Description

@KiwiFlavoredApollo
KiwiFlavoredApollo
opened on Apr 9, 2026

Expected behavior

All work well like always.

Observed/actual behavior

Minecraft 1.20.1 Fabric
Ledger 1.3.18
Create Fabric 6.0.8.1+build.1744-mc1.20.1

Server crashes when a player activates Create mod's Redstone Link via button. Doesn't seem like Redstone Link directly crashes the server. Rather, It controls some kind of fluid but Ledger mod fails to make a log for it.

java.lang.NullPointerException: Parameter specified as non-null is null: method com.github.quiltservertools.ledger.callbacks.BlockPlaceCallback.place, parameter player
	at knot//com.github.quiltservertools.ledger.callbacks.BlockPlaceCallback.place(BlockPlaceCallback.kt)
	at knot//net.minecraft.class_1755.handler$cdo000$ledger$logFluidPlace(class_1755.java:3542)
	at knot//net.minecraft.class_1755.method_7731(class_1755.java:151)
	at knot//net.minecraft.class_2357$8.method_10135(class_2357.java:395)
	at knot//net.minecraft.class_2347.dispense(class_2347.java:16)

Steps/models to reproduce

  1. Activate Redstone Link via Button (i.e. Stone Button)
  2. Server crashes

What operating system are you running

Linux

Minecraft version

1.20.1

Ledger version

1.3.18

Logs

https://mclo.gs/sSU6GEk

Agreements

  • I am running the latest version of the mod.
  • My version of Minecraft is supported.
  • I have searched for and ensured there isn't already an open issue regarding this.

Other

No response

Activity

  1. KiwiFlavoredApollo
    added
    bugSomething isn't working
    on Apr 9, 2026

  2. Packsolite commented on Jun 13, 2026

    @Packsolite
    Packsolite
    on Jun 13, 2026

    Can confirm. Here is a deobfuscated stacktrace of the crash:

    java.lang.NullPointerException: Parameter specified as non-null is null: method com.github.quiltservertools.ledger.callbacks.BlockPlaceCallback.place, parameter player
	at knot//com.github.quiltservertools.ledger.callbacks.BlockPlaceCallback.place(BlockPlaceCallback.kt)
	at knot//MC//net.minecraft.item.BucketItem.handler$clk000$ledger$logFluidPlace(BucketItem.java:3542)
	at knot//MC//net.minecraft.item.BucketItem.placeFluid(BucketItem.java:151)
	at knot//MC//net.minecraft.block.dispenser.DispenserBehavior$8.dispenseSilently(DispenserBehavior.java:395)
	at knot//MC//net.minecraft.block.dispenser.ItemDispenserBehavior.dispense(ItemDispenserBehavior.java:16)
	at knot//MC//net.minecraft.block.DispenserBlock.dispense(DispenserBlock.java:90)
	at knot//MC//net.minecraft.block.DispenserBlock.scheduledTick(DispenserBlock.java:113)
	at knot//MC//net.minecraft.block.AbstractBlock$AbstractBlockState.scheduledTick(AbstractBlock.java:1113)
	at knot//MC//net.minecraft.server.world.ServerWorld.tickBlock(ServerWorld.java:728)
	at knot//MC//net.minecraft.world.tick.WorldTickScheduler.tick(WorldTickScheduler.java:215)
	at knot//MC//net.minecraft.world.tick.WorldTickScheduler.tick(WorldTickScheduler.java:98)
	at knot//MC//net.minecraft.server.world.ServerWorld.tick(ServerWorld.java:323)
	at knot//net.minecraft.server.MinecraftServer.tickWorlds(MinecraftServer.java:897)
	at knot//MC//net.minecraft.server.dedicated.MinecraftDedicatedServer.tickWorlds(MinecraftDedicatedServer.java:283)
	at knot//net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:824)
	at knot//net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:671)
	at knot//net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:265)
	at java.base@21.0.11/java.lang.Thread.run(Thread.java:1583)
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