Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair

Summary: Remove usage of _highest_lock field in Thread so that is_lock_owned won't depend on the correct update of that field.
Reviewed-by: never, dice, acorn

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

Summary: Fixed the wrong cast between types since more restrictions are imposed by gcc 4.3.2
Reviewed-by: jcoomes, acorn, phh, never

Summary: DTrace probe "contended-exit" should be fired before unparking object, or context could be lost. Probe firing was moved to proper place.
Reviewed-by: coleenp, kamg