MapFrontiers

Evidence

Ran on Kiln's test stand (2026-11-04): MapFrontiersFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/network/protocol/common/custom/CustomPacketPayload; MapFrontiersClientFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/network/protocol/common/custom/CustomPacketPayload.

What it needs from Kiln

• Mixin
• com.mojang.authlib.GameProfile
• com.mojang.authlib.GameProfileRepository
• com.mojang.blaze3d.platform.NativeImage
• com.mojang.blaze3d.platform.Window
• com.mojang.blaze3d.vertex.PoseStack
• com.mojang.blaze3d.vertex.PoseStack.Pose
• com.mojang.renderpearl.api.pipeline.RenderPipeline
• io.netty.buffer.ByteBuf
• net.fabricmc.fabric.api.client.command.v2.ClientCommandRegistrationCallback
• net.fabricmc.fabric.api.client.command.v2.ClientCommands
• net.fabricmc.fabric.api.client.command.v2.FabricClientCommandSource
• net.fabricmc.fabric.api.client.message.v1.ClientReceiveMessageEvents
• net.fabricmc.fabric.api.client.message.v1.ClientReceiveMessageEvents.AllowChat
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Disconnect
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Join
• net.fabricmc.fabric.api.client.screen.v1.ScreenEvents
• net.fabricmc.fabric.api.client.screen.v1.ScreenEvents.BeforeInit
• net.fabricmc.fabric.api.client.screen.v1.ScreenMouseEvents
• net.fabricmc.fabric.api.client.screen.v1.ScreenMouseEvents.BeforeMouseRelease
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarted
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStopping
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.StartTick
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Join
• net.minecraft.SharedConstants
• net.minecraft.client.InputType
• net.minecraft.client.KeyboardHandler
• net.minecraft.client.Options
• net.minecraft.client.gui.ComponentPath
• net.minecraft.client.gui.Hud
• net.minecraft.client.gui.components.AbstractContainerWidget
• net.minecraft.client.gui.components.AbstractScrollArea
• net.minecraft.client.gui.components.AbstractScrollArea.ScrollbarSettings
• net.minecraft.client.gui.components.AbstractSliderButton
• net.minecraft.client.gui.components.AbstractWidget
• net.minecraft.client.gui.components.Button
• and 81 more

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

In the author's words

This mod is an addon for JourneyMap that allows you to divide the map into regions and assign them names and colors.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file MapFrontiers-26.3-fabric-3.0.0-beta.13.jar. The scan reads the mod's classes; it does not run them.