Today, on java8, if you typo a link in the package documentation of org.apache.lucene.search (package.html) like this:
then javadoc will silently do the wrong thing, it will generate a <code>xxx</code> block with no link at all.
On the other hand, if instead we do it as package-info.java, then it shows up in big red letters as an error in my IDE, doclint catches it at compile time, etc, and we ensure our links are doing what we want.
I think we should cutover? this also helps us rely less on our own linting scripts long term because now doclint is checking these files too.