8059735: make_not_entrant_or_zombie sees zombies Summary: Make sure nmethod is not set to zombie state twice by sweeper and safepoint code. Reviewed-by: kvn, anoll, mgerdin

8059331: Print additional information for the assert in Compile::start() Summary: Add additional output that shows the failure reason Reviewed-by: kvn

8059559: SIGSEGV at CodeHeap::allocate(unsigned int, bool) Summary: Create the non-profiled code heap if TieredStopAtLevel=0 is set because we compile method handle intrinsics. Reviewed-by: kvn