code: private static int USAGE(int exitCode) {
  		System.err.println("Usage:\n");
  		System.err.println("extractor [OPT] SRC");
  		System.err.println("\tSRC is the local path, HTTP or HDFS URL to an " +
  				"arc, warc, arc.gz, or warc.gz.");
  		System.err.println("\tOPT can be one of:");		
  		System.err.println("\t\t-cdxURL\tProduce output in old URL Wayback CDX format");
  		System.err.println("\t\t-cdx\tProduce output in NEW-SURT-Wayback CDX format");
  		System.err.println("\t\t\t (note that column 1 is NOT standard Wayback canonicalized)\n");
  		System.err.println("\t\t-wat\tembed JSON output in a compressed WARC" +
  				"wrapper, for storage, or sharing.");
  		return exitCode;
  	}
docs: Logger.getLogger(ResourceExtractor.class.getName());