Hello, fellows!

Does anybody know how to read VM thread dump? Any references? links?
I am trying to find any useful info on javasoft's site. No luck.

I ran a simple program that will enumerate all active threads (including
system), and here's the part of the output:

I know what Thread[0] is. What about the other two? JIT is Just in time
compiler. But what is "Lazy Compilation"? And what is the difference between
0 and PA (besides priorities)?

I also know that every Java program will have a Clock handler thread
running. However, I don't see it in my case when I check the active threads.