Paper/src/main/java/net/minecraft/server/IDataManager.java

package net.minecraft.server;

import java.io.File;

public interface IDataManager {

    WorldData getWorldData();

    void checkSession() throws ExceptionWorldConflict; // CraftBukkit - throws ExceptionWorldConflict

    IChunkLoader createChunkLoader(WorldProvider worldprovider);

    void saveWorldData(WorldData worlddata, NBTTagCompound nbttagcompound);

    void saveWorldData(WorldData worlddata);

    PlayerFileData getPlayerFileData();

    void a();

    File getDataFile(String s);

    String g();

    java.util.UUID getUUID(); // CraftBukkit
}