Summary: This change revamps the slow allocation path of G1. Improvements include the following: a) Allocations directly to old regions are now totally banned. G1 now only allows allocations out of young regions (with the only exception being humongous regions). b) The thread that allocates a new region (which is now guaranteed to be young) does not dirty all its cards. Each thread that successfully allocates out of a young region is now responsible for dirtying the cards that corresponding to the "block" that just got allocated. c) allocate_new_tlab() and mem_allocate() are now implemented differently and TLAB allocations are only done by allocate_new_tlab(). d) If a thread schedules an evacuation pause in order to satisfy an allocation request, it will perform the allocation at the end of the safepoint so that the thread that initiated the GC also gets "first pick" of any space made available by the GC. e) If a thread is unable to allocate a humongous object it will schedule an evacuation pause in case it reclaims enough regions so that the humongous allocation can be satisfied aftewards. f) The G1 policy is more careful to set the young list target length to be the survivor number +1. g) Lots of code tidy up, removal, refactoring to make future changes easier.
Reviewed-by: johnc, ysr

Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

Summary: 6970683 and 6953144 introduced changes that need to be implemented for Zero and Shark.
Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Reviewed-by: acorn, dholmes

Summary: Ported Chris Phillips' patch from jdk5 to jdk7
Reviewed-by: chrisphi, coleenp

Summary: Wrong value type is used for NULL store when clearing the detail message of the preallocated exception object.
Reviewed-by: never, iveresov

Summary: Fix policy reaction to C1 comilation failures, make C1 properly report errors.
Reviewed-by: kvn

Summary: An evacuation failure while copying the roots caused an object, A, to be forwarded to itself. During the subsequent RSet updating a reference to A was processed causing the reference to be added to the RSet of A's heap region. As a result of adding to the remembered set we ran into the issue described in 6930581 - the sparse table expanded and the RSet scanning code walked the cards in one instance of RHashTable (_cur) while the occupied() counts the cards in the expanded table (_next).
Reviewed-by: tonyp, iveresov

Summary: Weakened assert in onj_is_alive() to allow its use at initialization time when is_at_safepoint() normally reports false; added some related asserts to check order of is_init_completed() after Universe::is_fully_initialized().
Reviewed-by: jcoomes

Summary: HeapBaseMinAddress should be used only for a default heap size calculation.
Reviewed-by: iveresov, jcoomes, dholmes

Summary: Update the HS20 build number to 03
Reviewed-by: jcoomes

Summary: Weaken assert by excluding scavenges resulting from -XX:+ScavengeALot stress-testing option.
Reviewed-by: jmasa, tonyp

Summary: fix index check
Reviewed-by: never

Summary: The plug that guards the use of compressed oops with invokedynamic needs to be removed
Reviewed-by: twisti, kvn

6996613: CompactibleFreeListSpace::print should call CompactibleFreeListSpace::print_on, not Space::print_on
Reviewed-by: tonyp

Summary: Do several iterations to build EA Connection Graph.
Reviewed-by: never, twisti, ysr

Summary: use unsigned DIV instruction
Reviewed-by: never

Summary: Fix the compiler error. Allow to build just c2 specifying FORCE_TIERED=0 on the command line.
Reviewed-by: never, kvn

Summary: Since we are at a stop-world pause, the existing CMS-phase checks are sufficient for safety, and the locking check can be safely elided. Elaborated documentation comment to the case where class unloading and verification are disabled, and the query happens when we aren't in the sweeping phase, where the answer "false" would be (almost everywhere) too pessimistic.
Reviewed-by: jmasa, johnc, tonyp

Summary: Add missing line to vmStructs.  Also fix bug with class dumper.
Reviewed-by: twisti, kvn

Summary: Change property value to 1.<major_version> for major_version >= 7
Reviewed-by: dholmes, acorn