8150523: improve jtreg test timeout handling, especially -timeout:
Reviewed-by: martin, psandoz, smarks

8142441: Improve jtreg tests for java.util.concurrent
Reviewed-by: martin, psandoz, chegar, shade, plevart

6943119: Rebrand source copyright notices
Reviewed-by: darcy, weijun

6625723: Excessive ThreadLocal storage used by ReentrantReadWriteLock
Reviewed-by: dholmes
Contributed-by: Doug Lea <dl@cs.oswego.edu>

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