--- old/src/share/vm/runtime/vmStructs.cpp	2014-10-17 15:27:20.000000000 +0200
+++ new/src/share/vm/runtime/vmStructs.cpp	2014-10-17 15:27:20.000000000 +0200
@@ -524,7 +524,6 @@
   nonstatic_field(ContiguousSpace,             _concurrent_iteration_safe_limit,              HeapWord*)                             \
   nonstatic_field(ContiguousSpace,             _saved_mark_word,                              HeapWord*)                             \
                                                                                                                                      \
-  nonstatic_field(DefNewGeneration,            _next_gen,                                     Generation*)                           \
   nonstatic_field(DefNewGeneration,            _tenuring_threshold,                           uint)                                  \
   nonstatic_field(DefNewGeneration,            _age_table,                                    ageTable)                              \
   nonstatic_field(DefNewGeneration,            _eden_space,                                   EdenSpace*)                            \