--- old/src/share/vm/gc_implementation/shared/parGCAllocBuffer.cpp	2015-04-07 20:38:40.393789049 +0400
+++ new/src/share/vm/gc_implementation/shared/parGCAllocBuffer.cpp	2015-04-07 20:38:40.309789057 +0400
@@ -39,7 +39,7 @@
 
 ParGCAllocBuffer::ParGCAllocBuffer(size_t desired_plab_sz_) :
   _word_sz(desired_plab_sz_), _bottom(NULL), _top(NULL),
-  _end(NULL), _hard_end(NULL), _allocated(0), _wasted(0)
+  _end(NULL), _hard_end(NULL), _allocated(0), _wasted(0), _undo_wasted(0)
 {
   // ArrayOopDesc::header_size depends on command line initialization.
   AlignmentReserve = oopDesc::header_size() > MinObjAlignment ? align_object_size(arrayOopDesc::header_size(T_INT)) : 0;
@@ -69,6 +69,7 @@
   // will artifically inflate the values in the statistics.
   _allocated = 0;
   _wasted = 0;
+  _undo_wasted = 0;
 }
 
 void ParGCAllocBuffer::retire() {