Summary: smaller shared changes required to build the C2 compiler on PPC64.
Reviewed-by: kvn

Summary: Remove min_gen1_size argument from adjust_gen0_sizes()
Reviewed-by: tschatzl, brutisso

Summary: Update NewSize when _initial_gen0_size is changed
Reviewed-by: tschatzl, brutisso

7057939: jmap shows MaxNewSize=4GB when Java is using parallel collector
Summary: Major cleanup of the collectorpolicy classes
Reviewed-by: tschatzl, jcoomes

Summary: Should compare bounds greater than or equal 4G when deciding if shift is needed or CDS area + compressed class space are within 4G of each other.
Reviewed-by: stefank, hseigel, zgu

Summary: Allocate compressed class space at end of Java heap.  For small heap sizes, without CDS, save some space so compressed classes can have the same favorable compression as oops
Reviewed-by: stefank, hseigel, goetz

8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space
Summary: Incorporate chunk size when seeing if OutOfMemoryError was caused by Metaspace or Compressed class space.
Reviewed-by: stefank, coleenp

Summary: Cleanup related to the NewSize and MaxNewSize bugs
Reviewed-by: tschatzl, jcoomes, ehelin

Summary: Moved restricted_align_down to globalDefinitions and renamed it align_size_down_bounded
Reviewed-by: stefank, mgerdin, tschatzl

Summary: Removed the GenRemSet::rem_set_name() since we only have one remset.
Reviewed-by: stefank, mgerdin, tschatzl

Reviewed-by: stefank, jwilhelm

Reviewed-by: coleenp, mgerdin

Reviewed-by: mgerdin, coleenp

Reviewed-by: coleenp, jmasa

Reviewed-by: coleenp, jmasa

Summary: Chunk up the last piece of committed memory in a VSN when getting a new one.
Reviewed-by: stefank, jmasa

Summary: Check if data is in shared spaces before deallocating it.
Reviewed-by: coleenp, dcubed

Summary: New default methods list with inherited superinterface methods
Reviewed-by: minqi, sspitsyn, coleenp

Reviewed-by: coleenp, ehelin

Reviewed-by: brutisso, jmasa, coleenp

Summary: Changed a few descriptions and variable names to young gen.
Reviewed-by: tschatzl, jcoomes

Summary: Use instance variables directly within the collector policy classes and remove unused setters.
Reviewed-by: tschatzl, jcoomes

Summary: Remove a few redundant switch-statements
Reviewed-by: jcoomes, tschatzl

Reviewed-by: stefank, tschatzl

Summary: Enable CHECK_UNHANDLED_OOPS in fastdebug builds across all supported platforms.
Reviewed-by: coleenp, hseigel, dholmes, stefank, twisti, ihse, rdurbin
Contributed-by: lois.foltan@oracle.com

Reviewed-by: mgerdin, tschatzl, jmasa

Summary: Move some G1 specific code from CardTableModRefBS to G1SATBCardTableModRefBS.
Reviewed-by: brutisso, tschatzl, ehelin

Summary: Only put "Compressed class space" as OOM cause if actually using Compressed class space
Reviewed-by: jwilhelm, stefank, ehelin, coleenp

Reviewed-by: coleenp, mgerdin, jmasa

Summary: Need to refetch each method from InstanceKlass after all safepoints.  Removed leaky PreviousVersionInfo code.
Reviewed-by: dcubed, sspitsyn

Reviewed-by: coleenp, brutisso, mgerdin, jmasa

Summary: SymbolTable and StringTable can make calls to GC_locker::is_active() outside a safepoint. This isn't safe because the GC_locker active state (lock count) is only updated at a safepoint and only remains valid as long as _needs_gc is true. However, outside a safepoint_needs_gc can change to false at any time, which makes it impossible to do a correct call to is_active() in that context. In this case these calls can just be removed since the input argument to basic_add() should never be on the heap and so there's no need to check the GC_locker state. This change also adjusts the assert() in is_active() to makes sure all calls to this function are always done under a safepoint.
Reviewed-by: brutisso, dcubed
Contributed-by: per.liden@oracle.com

Reviewed-by: stefank, dholmes, coleenp

8024396: VM crashing with assert(!UseLargePages || UseParallelOldGC || use_large_pages) failed: Wrong alignment to use large pages
Summary: Loosen wrong assert for UseParallelOldGC to UseParallelGC
Reviewed-by: stefank, brutisso

Reviewed-by: kvn, coleenp

Reviewed-by: brutisso, mgerdin, coleenp

Reviewed-by: jmasa, brutisso

Reviewed-by: jwilhelm, brutisso, tschatzl

Reviewed-by: brutisso, mgerdin, coleenp, jmasa

Reviewed-by: brutisso, ehelin