All the other ones seem to be about not being able to make sense of Flash objects (which the JavaRanch home page uses for ads). While you didn't say what you intend to do with the web page you retrieved, most likely it won't have anything to do with those. So you can ignore them too. There's probably a way to tell HtmlUnit to ignore (or not bother at all) with Flash through some setting.
Joined: Oct 11, 2009
Thank You very much Lester Burnham.
I want to make an application that would be a java ranch reader, which should be a part of a notes organiser, for my own fun and practical use.
I was suspecting that other warnings might be becaouse of the flash ads, and thank You for Your opinion too.