net.minecraft.world.storage

Class
DerivedWorldInfo
MapData
MapData$MapInfo
MapStorage
SaveDataMemoryStorage
SaveFormatComparator
SaveFormatOld
SaveHandler
SaveHandlerMP
ThreadedFileIOBase
WorldInfo
WorldInfo$1
WorldInfo$2
WorldInfo$3
WorldInfo$4
WorldInfo$5
WorldInfo$6
WorldInfo$7
WorldInfo$8
WorldInfo$9

Interface
IPlayerFileData
ISaveFormat
ISaveHandler
IThreadedFileIO