--- old/src/share/vm/memory/genMarkSweep.cpp	2014-02-12 10:52:51.941329426 +0100
+++ new/src/share/vm/memory/genMarkSweep.cpp	2014-02-12 10:52:51.841329422 +0100
@@ -294,7 +294,7 @@
   gch->gen_process_strong_roots(level,
                                 false, // Younger gens are not roots.
                                 true,  // activate StrongRootsScope
-                                SharedHeap::SO_AllClasses | SharedHeap::SO_AllCodeCache,
+                                SharedHeap::SO_AllClasses | SharedHeap::SO_Strings | SharedHeap::SO_AllCodeCache,
                                 &adjust_pointer_closure,
                                 &adjust_pointer_closure,
                                 &adjust_klass_closure);