code: protected final List<String> getExtraneousArguments() {
          if (commandLine == null) {
              return emptyList();
          }
          String[] args = commandLine.getArgs();
          if (noItems(args)) {
              return emptyList();
          }
          return asList(args);
      }
docs: Returns the extraneous command-line arguments.
  
  @return Non-null list of strings, may be empty