Issue type:

• 🐛 Bug

Short description:

Using the Item Fluid (fluidstack) operator on null Items crashes the game.
java.lang.NullPointerException: Attempted to create a ValueFluidStack for a null FluidStack.

Steps to reproduce the problem:

1. Have a container with only a bucket of water. The rest of the slots should be empty.

• Note: any fluid containing item will also replicate this crash as long as there is a empty slot.

2. Link an Inventory Reader to the container.
3. Get the reference to the Items in the inventory (Aspect: Items)
4. Make a Operator of the function Item Fluid
5. Combine the inventory list reference and the Item Fluid operator using Map
6. Render variable through proxy / display and replicate crash.

• Note: Thankfully the entire network shuts down on loading the world again and does not cause corruption.

Expected behaviour:

Instead of crashing, there should be text regarding Null value

Versions:

• This mod: IntegratedDynamics: 1.27.2, IntegratedTunnels: 1.8.40, IntegratedCrafting 1.2.2, Integrated Terminals 1.6.12
• Minecraft: 1.21
• Mod loader version: NeoForge 21.1.172

First replicated on OceanBlock2 modpack.

Log file:

https://pastebin.com/CZi0JkZJ
https://pastebin.com/BdX9r3sJ <-- manually updated to 1.27.4 and can still replicate crash

Oh wow, this bug has existed for a long time already 😅

Thanks for reporting!