private static void reloadConfiguration() {
List<ConfigurationSource> configurationSources = new ArrayList<ConfigurationSource>();
configurationSources.addAll(additionalConfigurationSources);
configurationSources.add(new SimpleSource());
configurationSources.add(new SystemPropertyConfigurationSource());
final String stagemonitorPropertyOverridesLocation = System.getProperty("stagemonitor.property.overrides");
if (stagemonitorPropertyOverridesLocation != null) {
logger.info("try loading of default property overrides: '" + stagemonitorPropertyOverridesLocation + "'");
configurationSources.add(new PropertyFileConfigurationSource(stagemonitorPropertyOverridesLocation));
}