diff -r 56d1af561395 -r 8f972594effc src/share/vm/classfile/systemDictionary.cpp
--- a/src/share/vm/classfile/systemDictionary.cpp	Fri May 11 14:54:35 2012 -0700
+++ b/src/share/vm/classfile/systemDictionary.cpp	Mon May 14 09:36:00 2012 -0700
@@ -1971,6 +1971,9 @@
   // first do Object, String, Class
   initialize_wk_klasses_through(WK_KLASS_ENUM_NAME(Class_klass), scan, CHECK);
 
+  // Calculate offsets for String and Class classes since they are loaded and
+  // can be used after this point.
+  java_lang_String::compute_offsets();
   java_lang_Class::compute_offsets();
 
   // Fixup mirrors for classes loaded before java.lang.Class.