--- a/hotspot/src/share/vm/runtime/vmStructs.cpp	Wed Jun 24 09:13:12 2015 +0200
+++ b/hotspot/src/share/vm/runtime/vmStructs.cpp	Thu Jun 25 09:48:50 2015 -0700
@@ -545,7 +545,6 @@
                                                                                                                                      \
   nonstatic_field(Generation,                  _reserved,                                     MemRegion)                             \
   nonstatic_field(Generation,                  _virtual_space,                                VirtualSpace)                          \
-  nonstatic_field(Generation,                  _level,                                        int)                                   \
   nonstatic_field(Generation,                  _stat_record,                                  Generation::StatRecord)                \
                                                                                                                                      \
   nonstatic_field(Generation::StatRecord,      invocations,                                   int)                                   \