Summary: add null pointer check in signal handler
Reviewed-by: kvn

Summary: Use 0 to indicate id is NA, -1 for error or uninitalized
Reviewed-by: kvn, twisti

Summary: Moved class definition of LRG_List from chaitin.hpp to live.hpp
Reviewed-by: kvn, rbackman, roland
Contributed-by: niclas.adlertz@oracle.com

8009761: Deoptimization on sparc doesn't set Llast_SP correctly in the interpreter frames it creates
Summary: deoptimization doesn't set up callee frames so that they restore caller frames correctly.
Reviewed-by: kvn

Reviewed-by: jcoomes

Summary: dump nodes and types in 8004640 case.
Reviewed-by: roland

Summary: 7121140 may not correctly break the Allocate -> MemBarStoreStore link
Reviewed-by: kvn

Summary: fix null pointer
Reviewed-by: kvn, coleenp

Reviewed-by: kvn, vlivanov

Summary: fix null pointer
Reviewed-by: kvn

Reviewed-by: jcoomes, ohair

8008559: [parfait] Path through non-void function '_ZN2os15thread_cpu_timeEP6Thread' returns an undefined value
Summary: safety checks for non-Apple thread time functions
Reviewed-by: kvn

Summary: Stop adding old regions to collection set when the remaining reclaimable bytes reaches, or goes below, G1HeapWastePercent. Changes were also reviewed by Vitaly Davidovich <vitalyd@gmail.com>.
Reviewed-by: brutisso

Reviewed-by: stefank, jmasa

Summary: Fix unitialized variable and return value.
Reviewed-by: kvn

Reviewed-by: jcoomes

Summary: Small changes to hotspot tests to remove  "-server" and replace with ${TESTVMOPTS}
Reviewed-by: kvn

Summary: Make deadlock detection a little more robust in the case of being unable to find the JavaThread associated with an object lock.
Reviewed-by: sla, acorn

Reviewed-by: poonam, sla