CLASS bdn net/minecraft/world/level/storage/LevelStorageOld
FIELD a savesDir Ljava/io/File;
FIELD b migrationHandler Lqv;
FIELD c LOGGER Lorg/apache/logging/log4j/Logger;
METHOD a getLevelProperties (Ljava/io/File;Lqv;)Lbdo;
METHOD a deleteRecursive ([Ljava/io/File;)Z