--- old/src/share/vm/memory/defNewGeneration.cpp	2015-03-30 23:00:58.000000000 +0200
+++ new/src/share/vm/memory/defNewGeneration.cpp	2015-03-30 23:00:58.000000000 +0200
@@ -378,8 +378,7 @@
 
   int next_level = level() + 1;
   GenCollectedHeap* gch = GenCollectedHeap::heap();
-  assert(next_level < gch->n_gens(),
-         "DefNewGeneration cannot be an oldest gen");
+  assert(next_level == 1, "DefNewGeneration cannot be an oldest gen");
 
   Generation* old_gen = gch->old_gen();
   size_t old_size = old_gen->capacity();