--- old/src/share/vm/memory/barrierSet.hpp	2015-01-05 09:44:32.321451405 -0500
+++ new/src/share/vm/memory/barrierSet.hpp	2015-01-05 09:44:31.769420272 -0500
@@ -57,9 +57,11 @@
   static const int _max_covered_regions = 2;
   Name _kind;
 
+  BarrierSet(Name kind) { _kind = kind; }
+  ~BarrierSet() { }
+
 public:
 
-  BarrierSet() { _kind = Uninit; }
   // To get around prohibition on RTTI.
   BarrierSet::Name kind() { return _kind; }
   virtual bool is_a(BarrierSet::Name bsn) = 0;
--- old/src/share/vm/memory/modRefBarrierSet.hpp	2015-01-05 09:44:33.885539616 -0500
+++ new/src/share/vm/memory/modRefBarrierSet.hpp	2015-01-05 09:44:33.417513220 -0500
@@ -37,7 +37,7 @@
 class ModRefBarrierSet: public BarrierSet {
 public:
 
-  ModRefBarrierSet() { _kind = BarrierSet::ModRef; }
+  ModRefBarrierSet() : BarrierSet(BarrierSet::ModRef) { }
 
   bool is_a(BarrierSet::Name bsn) {
     return bsn == BarrierSet::ModRef;