src/share/vm/memory/defNewGeneration.cpp

@@ -376,12 +376,11 @@
     return;
   }
 
   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();
   size_t new_size_before = _virtual_space.committed_size();
   size_t min_new_size = spec()->init_size();