int exitCode = -1;
                Exception exception = null;
                try {
                    exitCode = invoker.invoke(
                            parser.parseInvocation(ParserRequest.mvn(mvnArgs, new JLineMessageBuilderFactory())
                                    .cwd(cwd)
                                    .userHome(userHome)
                                    .stdOut(stdout)

                extra.put("session.rootDirectory", rootDirectory.toString());
            }
            return extra;
        }
    }

    @Override
    public InvokerRequest parseInvocation(ParserRequest parserRequest) {
        requireNonNull(parserRequest);

        LocalContext context = new LocalContext(parserRequest);

        // the basics
        try {