CLASS h net/minecraft/client/util/ClientUtils
	CLASS h$a OperatingSystem
		FIELD a UNIX Lh$a;
		FIELD b SOLARIS Lh$a;
		FIELD c WINDOWS Lh$a;
		FIELD d MAC Lh$a;
		FIELD e UNKNOWN Lh$a;
	METHOD a getOperatingSystem ()Lh$a;
	METHOD a getLast (Ljava/util/List;)Ljava/lang/Object;
		ARG 0 list
	METHOD a runTask (Ljava/util/concurrent/FutureTask;Lorg/apache/logging/log4j/Logger;)Ljava/lang/Object;
		ARG 0 task
		ARG 1 logger