docs: static public void configHttpFileSystemProxy(FileSystemOptions fsOptions, 
  			String webProxyHost, Integer webProxyPort, String webProxyUserName, String webProxyPassword){
  		if (webProxyHost != null && webProxyPort != null){
  			HttpFileSystemConfigBuilder.getInstance().setProxyHost(fsOptions, webProxyHost);
  			HttpFileSystemConfigBuilder.getInstance().setProxyPort(fsOptions, webProxyPort);
  			if (webProxyUserName != null){
  				StaticUserAuthenticator auth = new StaticUserAuthenticator(webProxyUserName, webProxyPassword, null); 
  				HttpFileSystemConfigBuilder.getInstance().setProxyAuthenticator(fsOptions, auth);
  			}
  		}
  
  	}