Summary: Directly map the threadStatus value to Thread.State
Reviewed-by: emcmanus, dholmes

Reviewed-by: forax, sherman, chegar

Reviewed-by: dholmes, alanb

Reviewed-by: dholmes

Reviewed-by: dholmes, coffeys

Reviewed-by: hawtin

Reviewed-by: darcy, weijun

Summary: Update copyright for files that have been modified in 2009, up to 03/09
Reviewed-by: katleman, tbell, ohair

Summary: Replace subclass audits synchronization with ConcurrentHashMap with weakly referenced Class keys
Reviewed-by: peterjones, dholmes, martin

Summary: update javadoc to specify NPE as well as fix minor bug in implementation.
Reviewed-by: alanb