user.put(
                    "session.rootDirectory",
                    invokerRequest.rootDirectory().get().toString());
        }
        this.protoSession = ProtoSession.newBuilder()
                .withSystemProperties(invokerRequest.systemProperties())
                .withUserProperties(user)
                .withTopDirectory(invokerRequest.topDirectory())
                .withRootDirectory(invokerRequest.rootDirectory().orElse(null))

        public Builder withUserProperties(@Nonnull Map<String, String> userProperties) {
            this.userProperties = new HashMap<>(userProperties);
            return this;
        }

        public Builder withSystemProperties(@Nonnull Map<String, String> systemProperties) {
            this.systemProperties = new HashMap<>(systemProperties);
            return this;
        }