public static ConfigAccessor loadExternalProperties(final String... externalPropertiesFilenames) {
final Properties properties = new Properties();
for (int i = 0; i < externalPropertiesFilenames.length; ++i) {
String currentPropertyFilename = externalPropertiesFilenames[i];
PropertiesLoader.loadExternalPropertiesFile(properties, currentPropertyFilename);
}
final PropertiesConfigAccessor config = new PropertiesConfigAccessor(properties);
return config;
}