Crash when ticking Mechanical Pump - NoClassDefFoundError: BlockAndTintGetter

[V4M0N0S]

Context

Description

The dedicated server crashes when a Create Mechanical Pump is ticking.

The crash happens inside the fluid handling code and appears to be caused by Create: Adapted trying to load a client-side rendering class on the dedicated server:

java.lang.NoClassDefFoundError: net/minecraft/client/renderer/block/BlockAndTintGetter

Environment

Minecraft: 26.2
NeoForge: 26.2.0.69
Create: Adapted: 6.0.11-adapted-0.96
Java: 25.0.4.1
OS: Debian 13 / Linux

Relevant stack trace

java.lang.NoClassDefFoundError: net/minecraft/client/renderer/block/BlockAndTintGetter
at com.simibubi.create.content.fluids.FlowSource$FluidHandler.manageSource(FlowSource.java:98)
at com.simibubi.create.content.fluids.PipeConnection.manageSource(PipeConnection.java:90)
at com.simibubi.create.content.fluids.FluidTransportBehaviour.tick(FluidTransportBehaviour.java:91)
at com.simibubi.create.content.fluids.pump.PumpBlockEntity$PumpFluidTransferBehaviour.tick(PumpBlockEntity.java:346)

Caused by:
java.lang.ClassNotFoundException: net.minecraft.client.renderer.block.BlockAndTintGetter

Block entity

create:mechanical_pump

The crash is reproducible when the chunk containing the Mechanical Pump is loaded and the pump starts ticking.

Removing the Mechanical Pump prevents the crash.

Crash Report

https://mclo.gs/3PZsjcG

[AlexSensey]

should have already been sent