It seems like java.com is powered by https://www.oracle.com/content-management/

After the page is loaded some JavaScript loads the actual page content via a REST API. While this takes place you are looking at a white screen.

The moment people with 0 technical background started to make technical decisions.

SPAs are a problem literally _everywhere_: When all you have is a sledgehammer, everything is a rusty nail just waiting to be pounded sideways and abandoned for someone else to fix.