code: public List<String> getUnmatchedArguments() {
          return interpreter.parseResultBuilder == null ? Collections.<String>emptyList() : UnmatchedArgumentException.stripErrorMessage(interpreter.parseResultBuilder.unmatched);
      }
docs: Returns the list of unmatched command line arguments, if any.
  @return the list of unmatched command line arguments or an empty list
  @see #isUnmatchedArgumentsAllowed()
  @since 0.9.7