CLASS awu net/minecraft/world/region/RegionFileManager
	FIELD a openRegionFiles Ljava/util/Map;
	METHOD a closeAll ()V
	METHOD a open (Ljava/io/File;II)Lawt;
	METHOD d readChunkData (Ljava/io/File;II)Ljava/io/DataInputStream;
	METHOD e writeChunkData (Ljava/io/File;II)Ljava/io/DataOutputStream;