I've only recently learned about the qualified this, and was curious as to when was it introduced in the language, as I've been using Java here and there for around 18 years.Oracle keeps only the specifications for Java SE up to 6, but I cannot find any earlier versions online. I'm curious if it was there all this time (but I never paid attention to it) or is it something introduced later.
When was Java's 'qualified this' introduced?
java;history