Warudo Downloader

Evidence

Ran on Kiln's test stand (2026-11-04): WarudoDownloader did not start: java.lang.IllegalAccessException: class kiln.Loader cannot access a member of class io.github.onlaait.warudodownloader.WarudoDownloader with modifiers "private".

What it needs from Kiln

• an access widener
• Mixin
• 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.event.lifecycle.v1.ClientTickEvents.EndLevelTick
• net.minecraft.Optionull
• net.minecraft.SharedConstants
• net.minecraft.WorldVersion
• net.minecraft.client.ClientClockManager
• net.minecraft.client.ClientClockManager.ClientClockInstance
• net.minecraft.client.gui.components.AbstractSliderButton
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.StringWidget
• net.minecraft.client.gui.components.debug.DebugScreenEntryList
• net.minecraft.client.gui.components.events.GuiEventListener
• net.minecraft.client.multiplayer.ClientChunkCache
• net.minecraft.client.multiplayer.ClientLevel.ClientLevelData
• net.minecraft.client.multiplayer.ServerData
• net.minecraft.client.player.RemotePlayer
• net.minecraft.client.resources.server.ServerPackManager
• net.minecraft.client.resources.server.ServerPackManager.ServerPackData
• net.minecraft.core.HolderLookup.RegistryLookup
• net.minecraft.core.HolderSet
• net.minecraft.core.LayeredRegistryAccess
• net.minecraft.core.RegistryAccess
• net.minecraft.core.RegistryAccess.Frozen
• net.minecraft.core.SectionPos
• net.minecraft.nbt.CompoundTag
• net.minecraft.nbt.ListTag
• net.minecraft.nbt.NbtOps
• net.minecraft.nbt.NbtUtils
• net.minecraft.nbt.Tag
• net.minecraft.network.chat.CommonComponents
• net.minecraft.network.chat.FormattedText
• net.minecraft.resources.RegistryOps
• net.minecraft.server.ReloadableServerResources
• net.minecraft.server.WorldLoader
• net.minecraft.server.WorldLoader.DataLoadContext
• net.minecraft.server.WorldLoader.DataLoadOutput
• and 75 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

Downloads worlds from multiplayer servers — a.k.a. advanced world downloader

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file warudo-downloader-26.3-1.jar. The scan reads the mod's classes; it does not run them.