They are using the past tense of Java. In case you don’t know, the primary use of Java when it came out was to run “applets” inside the browser. And it was terrible. It was later when it became mostly a server-side thing (which at the time was dominated by languages like Perl, PHP, etc.)
To be precise, applets were an early application of Java. But Sun Microsystems actually developed it in the long-standing dream of the “universal binary.”
When I wrote good access, I was really thinking that Java would have needed to provide an API at least as good as JQuery, not just a low-level way to walk nodes in a tree.