diff -r aba91a731143 -r 1d7922586cf6 src/cpu/x86/vm/vtableStubs_x86_32.cpp
--- a/src/cpu/x86/vm/vtableStubs_x86_32.cpp	Mon Jul 23 13:04:59 2012 -0700
+++ b/src/cpu/x86/vm/vtableStubs_x86_32.cpp	Tue Jul 24 10:51:00 2012 -0700
@@ -76,8 +76,7 @@
   // get receiver klass
   address npe_addr = __ pc();
   __ movptr(rax, Address(rcx, oopDesc::klass_offset_in_bytes()));
-  // compute entry offset (in words)
-  int entry_offset = instanceKlass::vtable_start_offset() + vtable_index*vtableEntry::size();
+
 #ifndef PRODUCT
   if (DebugVtables) {
     Label L;
@@ -93,7 +92,8 @@
   const Register method = rbx;
 
   // load methodOop and target address
-  __ movptr(method, Address(rax, entry_offset*wordSize + vtableEntry::method_offset_in_bytes()));
+  __ lookup_virtual_method(rax, vtable_index, method);
+
   if (DebugVtables) {
     Label L;
     __ cmpptr(method, (int32_t)NULL_WORD);