diff -r 7675ca064fdc -r a36d90acae41 hotspot/src/share/vm/runtime/vmStructs.cpp
--- a/hotspot/src/share/vm/runtime/vmStructs.cpp	Fri Mar 13 15:39:03 2015 +0000
+++ b/hotspot/src/share/vm/runtime/vmStructs.cpp	Thu Mar 05 23:47:26 2015 +0100
@@ -536,7 +536,7 @@
   nonstatic_field(ContiguousSpace,             _concurrent_iteration_safe_limit,              HeapWord*)                             \
   nonstatic_field(ContiguousSpace,             _saved_mark_word,                              HeapWord*)                             \
                                                                                                                                      \
-  nonstatic_field(DefNewGeneration,            _next_gen,                                     Generation*)                           \
+  nonstatic_field(DefNewGeneration,            _old_gen,                                      Generation*)                           \
   nonstatic_field(DefNewGeneration,            _tenuring_threshold,                           uint)                                  \
   nonstatic_field(DefNewGeneration,            _age_table,                                    ageTable)                              \
   nonstatic_field(DefNewGeneration,            _eden_space,                                   ContiguousSpace*)                      \