settingsRequest.setProjectSettingsFile(request.getProjectSettingsFile());
        settingsRequest.setGlobalSettingsFile(request.getGlobalSettingsFile());
        settingsRequest.setUserProperties(request.getUserProperties());
        settingsRequest.setSystemProperties(request.getSystemProperties());

        return build(settingsRequest);
    }

            localRepositoryPath = request.getLocalRepositoryPath().getAbsolutePath();
        }

        if (localRepositoryPath == null || localRepositoryPath.isEmpty()) {
            String path = request.getUserProperties().getProperty(Constants.MAVEN_USER_CONF);
            if (path == null) {
                path = request.getSystemProperties().getProperty("user.home") + File.separator + ".m2";
            }

        this.systemProperties = unmodifiable(systemProperties);
        return this;
    }

    @Override
    public Map<String, String> getUserProperties() {
        return userProperties;
    }

    /**
     * Sets the user properties to use for interpolation and profile activation. The user properties have been

     * on his discretion, e.g. via the {@code -Dkey=value} parameter on the command line.
     *
     * @return The user properties, never {@code null}.
     */
    Properties getUserProperties();

    /**
     * Sets the user properties to use for interpolation. The user properties have been configured directly by the user

        Interpolator interpolator = new DefaultInterpolator();
        Function<String, String> callback = v -> {
            String r = request.getUserProperties().getProperty(v);
            if (r == null) {
                r = request.getSystemProperties().getProperty(v);
            }
            return r != null ? r : v;
        };

        valueSources.add(new BuildTimestampValueSource(config.getBuildStartTime(), timestampFormat));
        valueSources.add(modelValueSource1);
        valueSources.add(new MapBasedValueSource(config.getUserProperties()));
        valueSources.add(new MapBasedValueSource(modelProperties));
        valueSources.add(new MapBasedValueSource(config.getExecutionProperties()));
        valueSources.add(new AbstractValueSource(false) {

                    if (session != null) {
                        configuration.setSystemProperties(session.getSystemProperties());
                        configuration.setUserProperties(session.getUserProperties());
                    } else {
                        configuration.setSystemProperties(getSystemProperties());
                        configuration.setUserProperties(new Properties());
                    }

                // properties in dependencies the user does not know. See MNG-7563 for details.
                modelRequest.setSystemProperties(
                        toProperties(session.getUserProperties(), session.getSystemProperties()));
                modelRequest.setUserProperties(new Properties());
                modelRequest.setModelCache(modelCacheFactory.createCache(session));

     * configured directly by the user on his discretion, e.g. via the {@code -Dkey=value} parameter on the command
     * line.
     *
     * @return The user properties, never {@code null}.
     */
    Properties getUserProperties();

    // Reactor
    MavenExecutionRequest setReactorFailureBehavior(String failureBehavior);

    String getReactorFailureBehavior();

    /**

     * configured directly by the user on his discretion, e.g. via the {@code -Dkey=value} parameter on the command
     * line.
     *
     * @return The user properties, never {@code null}.
     */
    Properties getUserProperties();

    /**
     * Sets the user properties to use for interpolation and profile activation. The user properties have been