code: public static XLogInfo create(XLog log, XEventClassifier defaultClassifier, 
  			Collection<XEventClassifier> classifiers) {
  		return new XLogInfoImpl(log, defaultClassifier, classifiers);
  	}
docs: Creates a new log info summary with a collection of custom
  event classifiers.
  
  @param log The event log to create an info summary for.
  @param defaultClassifier The default event classifier to be used.
  @param classifiers A collection of additional event classifiers to
  be covered by the created log info instance.
  @return The log info summary for this log.