// If there is only one argument, and it starts with an '@', then treat it
// as an options file, relative to the current working directory.
if ((args.length == 1) && (args[0].startsWith("@"))) {
FileRef optionsFile = defaultDir.join(args[0].substring(1));
Reader in = optionsFile.openReader(Charsets.UTF_8);
List<String> lines = CharStreams.readLines(in);
in.close();
List<String> parsedTokens = Lists.newArrayList();
for (String line : lines) {
for (String token : line.trim().split("\\s+")) {