code: private static void close(Closeable closeable) {
  		if (closeable != null) {
  			try {
  				closeable.close();
  			} catch (IOException ignored) {
  				logger.error("Failed to close output stream: "
  						+ ignored.getMessage());
  			}
  		}
  	}
docs: Closes a Closeable and swallows any exceptions that might occur in the
  process.
  
  @param closeable