*** old/src/share/vm/runtime/globals.hpp	Tue May  8 16:12:41 2012
--- new/src/share/vm/runtime/globals.hpp	Tue May  8 16:12:41 2012

*** 3900,3910 ****
--- 3900,3913 ----
            "(Unstable, Solaris-specific) Thread interrupt before or with "   \
            "EINTR for I/O operations results in OS_INTRPT. The default value"\
            " of this flag is true for JDK 6 and earlier")                    \
                                                                              \
    diagnostic(bool, WhiteBoxAPI, false,                                      \
!           "Enable internal testing APIs")                                   \
+                                                                             \
+   product(bool, PrintGCCause, true,                                         \
+           "Include GC cause in GC logging")
  
  /*
   *  Macros for factoring of globals
   */