Reviewed-by: kvn, twisti, apetrusenko, never, dcubed

Summary: Update copyright for files that have been modified in 2009, up to 07/09
Reviewed-by: tbell, ohair

Reviewed-by: kvn, phh

Summary: Use zero based compressed oops if java heap is below 32gb and unscaled compressed oops if java heap is below 4gb.
Reviewed-by: never, twisti, jcoomes, coleenp

Summary: allocate alignment-sized page(s) below java heap so that memory accesses at heap_base+1page give signal and cause an implicit null check
Reviewed-by: kvn, jmasa, phh, jcoomes

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

Summary: Move os_cpu/linux_sparc from closed to open
Reviewed-by: kamg