--- a/src/share/vm/classfile/javaClasses.cpp	Sun Nov 18 22:45:43 2012 +0100
+++ b/src/share/vm/classfile/javaClasses.cpp	Mon Nov 19 15:36:13 2012 +0100
@@ -348,6 +348,22 @@
   return java_lang_String::to_hash(value->char_at_addr(offset), length);
 }
 
+char* java_lang_String::as_quoted_ascii(oop java_string) {
+  typeArrayOop value  = java_lang_String::value(java_string);
+  int          offset = java_lang_String::offset(java_string);
+  int          length = java_lang_String::length(java_string);
+
+  jchar* base = (length == 0) ? NULL : value->char_at_addr(offset);
+  if (base == NULL) return NULL;
+
+  int result_length = UNICODE::quoted_ascii_length(base, length) + 1;
+  char* result = NEW_RESOURCE_ARRAY(char, result_length);
+  UNICODE::as_quoted_ascii(base, length, result, result_length);
+  assert(result_length >= length + 1, "must not be shorter");
+  assert(result_length == (int)strlen(result) + 1, "must match");
+  return result;
+}
+
 unsigned int java_lang_String::hash_string(oop java_string) {
   int          length = java_lang_String::length(java_string);
   // Zero length string doesn't hash necessarily hash to zero.
@@ -545,7 +561,7 @@
         assert(k->oop_is_objArray(), "Must be");
         Klass* element_klass = ObjArrayKlass::cast(k())->element_klass();
         assert(element_klass != NULL, "Must have an element klass");
-          comp_mirror = Klass::cast(element_klass)->java_mirror();
+          comp_mirror = element_klass->java_mirror();
       }
       assert(comp_mirror.not_null(), "must have a mirror");
 
@@ -634,8 +650,8 @@
     name = vmSymbols::type_signature(primitive_type(java_class));
   } else {
     Klass* k = as_Klass(java_class);
-    is_instance = Klass::cast(k)->oop_is_instance();
-    name = Klass::cast(k)->name();
+    is_instance = k->oop_is_instance();
+    name = k->name();
   }
   if (name == NULL) {
     st->print("<null>");
@@ -657,12 +673,12 @@
     name->increment_refcount();
   } else {
     Klass* k = as_Klass(java_class);
-    if (!Klass::cast(k)->oop_is_instance()) {
-      name = Klass::cast(k)->name();
+    if (!k->oop_is_instance()) {
+      name = k->name();
       name->increment_refcount();
     } else {
       ResourceMark rm;
-      const char* sigstr = Klass::cast(k)->signature_name();
+      const char* sigstr = k->signature_name();
       int         siglen = (int) strlen(sigstr);
       if (!intern_if_not_found) {
         name = SymbolTable::probe(sigstr, siglen);
@@ -677,13 +693,13 @@
 
 Klass* java_lang_Class::array_klass(oop java_class) {
   Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset));
-  assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_array(), "should be array klass");
+  assert(k == NULL || k->is_klass() && k->oop_is_array(), "should be array klass");
   return k;
 }
 
 
 void java_lang_Class::set_array_klass(oop java_class, Klass* klass) {
-  assert(klass->is_klass() && Klass::cast(klass)->oop_is_array(), "should be array klass");
+  assert(klass->is_klass() && klass->oop_is_array(), "should be array klass");
   java_class->metadata_field_put(_array_klass_offset, klass);
 }