coleenp [Wed, 23 Aug 2017 14:52:55 -0400] rev 46968
8160399: is_oop_or_null involves undefined behavior
8164984: Improper use of is_oop in production code
Summary: replace oop->is_oop*() with oopDesc::is_oop*(oop) so this pointer can be verified
Reviewed-by: iklam, kvn, dholmes
sangheki [Wed, 23 Aug 2017 13:14:20 -0700] rev 46965
8186402: [TESTBUG] "Balance queues" output expected by test
Summary: Changed to use 2 ParallelGCThreads to guarantee generating 'Balance queues' log
Reviewed-by: tschatzl, aharlap