--- old/src/share/vm/runtime/vmStructs.cpp	2014-12-05 16:00:48.425529231 +0100
+++ new/src/share/vm/runtime/vmStructs.cpp	2014-12-05 16:00:48.329529235 +0100
@@ -556,9 +556,6 @@
                                                                                                                                      \
   nonstatic_field(TenuredGeneration,           _min_heap_delta_bytes,                         size_t)                                \
   nonstatic_field(TenuredGeneration,           _the_space,                                    ContiguousSpace*)                      \
-  nonstatic_field(TenuredGeneration,           _last_gc,                                      WaterMark)                             \
-                                                                                                                                     \
-                                                                                                                                     \
                                                                                                                                      \
   nonstatic_field(Space,                       _bottom,                                       HeapWord*)                             \
   nonstatic_field(Space,                       _end,                                          HeapWord*)                             \