src/share/vm/runtime/globals.hpp

*** 3629,3639 ****
                                                                              \
    diagnostic(bool, WhiteBoxAPI, false,                                      \
            "Enable internal testing APIs")                                   \
                                                                              \
    product(bool, PrintGCCause, true,                                         \
!           "Include GC cause in GC logging")
  
  /*
   *  Macros for factoring of globals
   */
  
--- 3629,3642 ----
                                                                              \
    diagnostic(bool, WhiteBoxAPI, false,                                      \
            "Enable internal testing APIs")                                   \
                                                                              \
    product(bool, PrintGCCause, true,                                         \
!           "Include GC cause in GC logging")                                 \
!                                                                             \
!   product(bool, DeallocateHeapPages, false,                                 \
!           "Deallocate (unused portion of) in-RAM heap pages to save RAM")
  
  /*
   *  Macros for factoring of globals
   */