src/game/java/net/minecraft/server/WorldStem.java

package net.minecraft.server;

import net.minecraft.core.LayeredRegistryAccess;
import net.minecraft.server.packs.resources.CloseableResourceManager;
import net.minecraft.world.level.storage.WorldData;

public record WorldStem(
    CloseableResourceManager resourceManager, ReloadableServerResources dataPackResources, LayeredRegistryAccess<RegistryLayer> registries, WorldData worldData
) implements AutoCloseable {
    @Override
    public void close() {
        this.resourceManager.close();
    }
}