code: public static Map<String, String> filterProperties(Properties props, String prefix, boolean removePrefix) {
  
  		List<String> excludedProperties = Collections.emptyList();
  		return filterProperties(props, prefix, removePrefix, excludedProperties);
  	}
docs: Filters the properties file using the prefix given in parameter.
  
  @param props
  the properties
  @param prefix
  the prefix of the property to retrieve
  @param removePrefix
  the flag indicating if the prefix should be removed from the
  property key.
  @return the filtered properties