Reviewed-by: alanb, ahgross

Reviewed-by: chegar, ksrini

4268317: (ref) Reference.isEnqueued() can return true when instance not enqueued
Summary: The reference handler now declares, and assumes, that the discovered field, rather than the next field, is (to be) used to link the entries in the pending list, thus allowing a reference object to be safely enqueued even while it is in the pending state. Also added slightly modified regression tests from the two bug reports.
Reviewed-by: mchung, alanb, jcoomes

Reviewed-by: darcy, weijun

6711667: (ref) Update SoftReference timestamp only if clock advances
Summary: Forward port from 6u14; originally fixed by Tom Rodriguez in earlier update
Reviewed-by: martin

Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell

Reviewed-by: alanb, iris, lmalvent, bristor, peterjones, darcy, wetmore