If I remember correctly the first usable one was actually 1.0.1.
1.0.2 was the most stable and lasted the longest
Might have been that one, I just remember it was exactly 1.0.
Also remember some bugs as it was possible to combine accessors together something like having public private.
Yes, prior versions were insanely buggy. 1.0.2 was pretty stable as they fixed most of the problems by then, although Java 1.1 was when companies started to really use it for stability. Problems happened with the windows fork which was pinned to 1.1.3 but it went up to 1.1.8 IIRC.