if (req != null) {
                request.setRemoteRepositories(req.getRemoteRepositories());
            }
        } else {
            Properties props = new Properties();
            EnvironmentUtils.addEnvVars(props);
            props.putAll(System.getProperties());
            request.setSystemProperties(props);
        }

        return request;
    }

    @SuppressWarnings("unchecked")

        // Load environment and system properties
        // ----------------------------------------------------------------------

        EnvironmentUtils.addEnvVars(systemProperties);
        SystemProperties.addSystemProperties(systemProperties);

        // ----------------------------------------------------------------------

                && !(e.getCause().getCause() instanceof ArtifactNotFoundException);
    }

    private Properties getSystemProperties() {
        Properties props = new Properties();

        EnvironmentUtils.addEnvVars(props);

        SystemProperties.addSystemProperties(props);

        return props;
    }

    private static final class ProjectRelocation {
        private MavenProject project;