code: public static synchronized void provision(final File folder)
  			throws Exception {
  
  		if (isNativeLoaded()) {
  			logger.warning("Sigar library is already provisioned.");
  			return;
  		}
  
  		if (!folder.exists()) {
  			folder.mkdirs();
  		}
  
  		final SigarLoader sigarLoader = new SigarLoader(Sigar.class);
  
  		/** Library name for given architecture. */
  		final String libraryName = sigarLoader.getLibraryName();
  
  		/** Library location embedded in the jar class path. */
  		final String sourcePath = "/" + LIB_DIR + "/" + libraryName;
  
  		/** Absolute path to the extracted library the on file system. */
  		final File targetPath = new File(folder, libraryName).getAbsoluteFile();
  
  		/** Extract library form the jar to the local file system. */
  		final InputStream sourceStream = SigarProvisioner.class
  				.getResourceAsStream(sourcePath);
  		final OutputStream targetStream = new FileOutputStream(targetPath);
  		transfer(sourceStream, targetStream);
  		sourceStream.close();
  		targetStream.close();
  
  		/** Load library via absolute path. */
  		final String libraryPath = targetPath.getAbsolutePath();
  		System.load(libraryPath);
  
  		/** Tell sigar loader that the library is already loaded. */
  		System.setProperty("org.hyperic.sigar.path", "-");
  		sigarLoader.load();
  
  		logger.info("Sigar library provisioned: " + libraryPath);
  
  	}
docs: Extract and load native sigar library in the provided folder.
  
  @param folder
  Library extraction folder.
  @throws Exception
  The provisioning failure exception.