code: private static void closeQuietly(Closeable stream) {
  		try {
  			stream.close();
  		}
  		catch (IOException ex) {
  			// Just log.
  			log.debug(ex.getMessage(), ex);
  		}
  	}
docs: Close a {@link java.io.Closeable} object and do not throws a Checked Exception
  if an exception occurs.
  
  @param stream Closeable stream.