--- old/src/share/vm/memory/generation.cpp	2014-08-20 20:17:06.000000000 +0200
+++ new/src/share/vm/memory/generation.cpp	2014-08-20 20:17:05.000000000 +0200
@@ -163,7 +163,7 @@
   GenCollectedHeap* gch = GenCollectedHeap::heap();
   int next = level() + 1;
   if (next < gch->_n_gens) {
-    return gch->_gens[next];
+    return gch->get_gen(next);
   } else {
     return NULL;
   }