Nashorn demo of simple crawler
downloadSize.js - Version 1. Retrieve URL from config.txt. Retrieve size of web page URL without linked images, etc
downloadSize2.js - Version 2. Retrieve set of URLs from config.json. Retrieve size of web page URLs without linked images, etc. Write to ouput.json
downloadSize3.js - Version 3. Retrieve URLs from config.json. Retrieve size of web page plus linked images, etc. Write to output.json
DownloadSize.java - Load and execute downloadSize3.js