Don't Drop It! Revivied

Evidence

Ran on Kiln's test stand (2026-11-04): DontDropIt did not start: java.lang.NoClassDefFoundError: org/apache/logging/log4j/LogManager.

What it needs from Kiln

• an access widener
• Mixin
• com.mojang.blaze3d.platform.InputConstants.Key
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLevelEvents
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLevelEvents.AfterClientLevelChange
• net.minecraft.client.Options
• net.minecraft.client.gui.components.toasts.SystemToast
• net.minecraft.client.gui.components.toasts.SystemToast.SystemToastId
• net.minecraft.client.gui.components.toasts.ToastManager
• net.minecraft.client.gui.screens.inventory.CreativeModeInventoryScreen
• net.minecraft.client.gui.screens.inventory.CreativeModeInventoryScreen.CustomCreativeSlot
• net.minecraft.client.multiplayer.MultiPlayerGameMode
• net.minecraft.core.HolderSet
• net.minecraft.core.HolderSet.Named
• net.minecraft.core.RegistryAccess
• net.minecraft.network.chat.Style
• net.minecraft.tags.EnchantmentTags
• net.minecraft.tags.TagKey
• net.minecraft.world.entity.player.Inventory
• net.minecraft.world.inventory.Slot
• net.minecraft.world.item.enchantment.Enchantment
• net.minecraft.world.item.enchantment.EnchantmentHelper
• net.minecraft.world.item.enchantment.ItemEnchantments
• org.apache.logging.log4j.LogManager
• InputConstants.UNKNOWN
• ReferenceSet.addAll()
• ReferenceSet.remove()
• FabricLoader.getEntrypoints()
• KeyMapping.isDown()
• KeyMapping.isUnbound()
• Minecraft.gameMode
• Minecraft.options
• Gui.toastManager()
• ClientLevel.registryAccess()
• LocalPlayer.getInventory()
• Holder.is()
• Registry.getOptional()
• Registry.getOrThrow()
• TypedInstance.is()
• Registries.ENCHANTMENT
• MutableComponent.withStyle()
• Identifier.tryParse()
• and 3 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Machines (0.4), Mixin (0.5)

In the author's words

Prevents accidental dropping of items via various means.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file dontdropit-2.5.1+26.3.jar. The scan reads the mod's classes; it does not run them.