When the rule was made, it would not be uncommon to write Java in, say, Emacs. Nowadays it's practically guaranteed everyone writing Java will be using a fully

When the rule was made, it would not be uncommon to write Java in, say, Emacs. Nowadays it's practically guaranteed everyone writing Java will be using a fully fledged IDE (or if you did stick with Emacs, there are now packages to basically turn it into a Java IDE for all intents and purposes), so needing to remember the exact rule as you type is far less of a concern, as you get instant feedback vs feedback 10 minutes down the line when you try to compile your code.