--- old/src/share/vm/memory/genMarkSweep.cpp	2014-02-12 10:10:18.565222836 +0100
+++ new/src/share/vm/memory/genMarkSweep.cpp	2014-02-12 10:10:18.465222832 +0100
@@ -212,7 +212,6 @@
                                 true,  // activate StrongRootsScope
                                 SharedHeap::SO_SystemClasses,
                                 &follow_root_closure,
-                                true,   // walk code active on stacks
                                 &follow_root_closure,
                                 &follow_klass_closure);
 
@@ -295,18 +294,12 @@
   gch->gen_process_strong_roots(level,
                                 false, // Younger gens are not roots.
                                 true,  // activate StrongRootsScope
-                                SharedHeap::SO_AllClasses,
+                                SharedHeap::SO_AllClasses | SharedHeap::SO_AllCodeCache,
                                 &adjust_pointer_closure,
-                                false, // do not walk code
                                 &adjust_pointer_closure,
                                 &adjust_klass_closure);
 
-  // Now adjust pointers in remaining weak roots.  (All of which should
-  // have been cleared if they pointed to non-surviving objects.)
-  CodeBlobToOopClosure adjust_code_pointer_closure(&adjust_pointer_closure,
-                                                   /*do_marking=*/ false);
-  gch->gen_process_weak_roots(&adjust_pointer_closure,
-                              &adjust_code_pointer_closure);
+  gch->gen_process_weak_roots(&adjust_pointer_closure);
 
   adjust_marks();
   GenAdjustPointersClosure blk;