src/hotspot/share/gc/shared/gc_globals.hpp

*** 691,11 ***
            "Delay between expansion and allocation (in milliseconds)")       \
                                                                              \
    product(uintx, GCDrainStackTargetSize, 64,                                \
            "Number of entries we will try to leave on the stack "            \
            "during parallel gc")                                             \
!           range(0, max_juint)
  
  // end of GC_FLAGS
  
  DECLARE_FLAGS(GC_FLAGS)
  
--- 691,14 ---
            "Delay between expansion and allocation (in milliseconds)")       \
                                                                              \
    product(uintx, GCDrainStackTargetSize, 64,                                \
            "Number of entries we will try to leave on the stack "            \
            "during parallel gc")                                             \
!           range(0, max_juint)                                               \
+                                                                             \
+   product(bool, UseAltGCForwarding, false, EXPERIMENTAL,                    \
+           "Use alternative GC forwarding that preserves object headers")    \
  
  // end of GC_FLAGS
  
  DECLARE_FLAGS(GC_FLAGS)