code: public static OSType getOperatingSystemType() {
  		if (detectedOS == null) {
  			String OS = System.getProperty("os.name", "generic").toLowerCase(
  					Locale.ENGLISH);
  			if ((OS.indexOf("mac") >= 0) || (OS.indexOf("darwin") >= 0)) {
  				detectedOS = OSType.MacOS;
  			} else if (OS.indexOf("win") >= 0) {
  				detectedOS = OSType.Windows;
  			} else if (OS.indexOf("nux") >= 0) {
  				detectedOS = OSType.Linux;
  			} else {
  				detectedOS = OSType.Other;
  			}
  		}
  		return detectedOS;
  	}
docs: detect the operating system from the os.name System property and cache
  the result
  
  @returns - the operating system detected