Multi-Threading (Concurrency) in Java

Over many years of teaching introduction to Java, I have
added to my personal lecture notes.  I have since retired
and wish to share some of these notes with the world.
But I am unsure.  While my students all said the notes were
very valuable, what do they know?  In addition, they were
mostly suck-ups.
So are these notes useful?  Are they clear, accurate, complete?
Or are they a big mess of misunderstandings?  I like to
think they are (or could be made) useful, but I'm a
self-suckup and not the best judge.
So I'm posting a link to the 44 page PDF, hoping some
folk here have the time and interest to look it over
and provide honest feedback.  Thanks in advance!
The link:
<https://wpollock.com/AJava/MultiThreadingInJava.pdf>
--
Wayne