FIELD a EXECUTOR_SERVICE Lcom/google/common/util/concurrent/ListeningExecutorService;
FIELD c LOGGER Lorg/apache/logging/log4j/Logger;
METHOD a getAvailablePort ()I
METHOD a downloadResourcePack (Ljava/io/File;Ljava/lang/String;Ljava/util/Map;ILnone/ot;Ljava/net/Proxy;)Lcom/google/common/util/concurrent/ListenableFuture;