class DefaultSettingsBuildingRequest implements SettingsBuildingRequest {

    private File globalSettingsFile;

    private File projectSettingsFile;

    private File userSettingsFile;

    private SettingsSource globalSettingsSource;

    private SettingsSource projectSettingsSource;

    private SettingsSource userSettingsSource;

    private Properties systemProperties;

    private Properties userProperties;

    @Override
    public File getGlobalSettingsFile() {
        return globalSettingsFile;
    }

    @Override
    public DefaultSettingsBuildingRequest setGlobalSettingsFile(File globalSettingsFile) {
        this.globalSettingsFile = globalSettingsFile;

        return this;
    }

    @Override
    public SettingsSource getGlobalSettingsSource() {
        return globalSettingsSource;
    }

    @Override
    public DefaultSettingsBuildingRequest setGlobalSettingsSource(SettingsSource globalSettingsSource) {
        this.globalSettingsSource = globalSettingsSource;

        return this;
    }

    @Override
    public File getProjectSettingsFile() {
        return projectSettingsFile;
    }

    @Override
    public DefaultSettingsBuildingRequest setProjectSettingsFile(File projectSettingsFile) {
        this.projectSettingsFile = projectSettingsFile;

        return this;
    }

    @Override
    public SettingsSource getProjectSettingsSource() {
        return projectSettingsSource;
    }

    @Override
    public DefaultSettingsBuildingRequest setProjectSettingsSource(SettingsSource projectSettingsSource) {
        this.projectSettingsSource = projectSettingsSource;

        return this;
    }

    @Override
    public File getUserSettingsFile() {
        return userSettingsFile;
    }

    @Override
    public DefaultSettingsBuildingRequest setUserSettingsFile(File userSettingsFile) {
        this.userSettingsFile = userSettingsFile;

        return this;
    }

    @Override
    public SettingsSource getUserSettingsSource() {
        return userSettingsSource;
    }

    @Override
    public DefaultSettingsBuildingRequest setUserSettingsSource(SettingsSource userSettingsSource) {
        this.userSettingsSource = userSettingsSource;

        return this;
    }

    @Override
    public Properties getSystemProperties() {
        if (systemProperties == null) {
            systemProperties = new Properties();
        }

        return systemProperties;
    }

    @Override
    public DefaultSettingsBuildingRequest setSystemProperties(Properties systemProperties) {<FILL_FUNCTION_BODY>}

    @Override
    public Properties getUserProperties() {
        if (userProperties == null) {
            userProperties = new Properties();
        }

        return userProperties;
    }

    @Override
    public DefaultSettingsBuildingRequest setUserProperties(Properties userProperties) {
        if (userProperties != null) {
            this.userProperties = new Properties();
            this.userProperties.putAll(userProperties);
        } else {
            this.userProperties = null;
        }

        return this;
    }
}

        if (systemProperties != null) {
            this.systemProperties = new Properties();
            synchronized (systemProperties) { // avoid concurrent modification if someone else sets/removes an unrelated
                // system property
                this.systemProperties.putAll(systemProperties);
            }
        } else {
            this.systemProperties = null;
        }

        return this;
    
<no_super_class>