[s_k_]

Is it still relevant? If you've read it, what's your review in one sentence (or not just in one if you wish :D)?

[tauwauwau]

I read it a few years ago, when I wanted to know how many methods can there be in a Java class. (count: 2 bytes, but compiler fails to compile such a class a long before that).

Many of the concepts such as structure of class files should still be relevant (fact that all classes start with hex code CAFEBABE etc).

Garbage collection, security should be more or less relevant.