Java parse page (maybe HTMLUNIT), home work

Hello. I have the home work to do, and I have the problem here. It must be done in JAVA + external library (free). The problem is that: 1. Write method with 3 parameters: - List<String> urls - String userName - String password This method should: 1. Go to page [login to view URL] 2, Login to this page (by user name and password from parameters) - for tests you can register free account 3. After login you have textfield. 4. For all elements from urls list do: - paste url (from list) and submit - after submit, on section INBOUND LINKS -> click Links. - after click table should be visible - parse Referring Page URL and Link URL from table 5. After all urls (from list) are processed display Page URL and Link URL for each url. It should be done in Java + htmlunit or other library (or API if it is free). this is urgent. need today,