--- old/src/share/vm/oops/methodDataOop.hpp	Thu Feb  4 09:29:52 2010
+++ new/src/share/vm/oops/methodDataOop.hpp	Thu Feb  4 09:29:52 2010
@@ -545,6 +545,10 @@
     return cell_offset(counter_cell_count);
   }
 
+  void set_count(uint count) {
+    set_uint_at(count_off, count);
+  }
+
 #ifndef PRODUCT
   void print_data_on(outputStream* st);
 #endif
@@ -692,6 +696,10 @@
 
   void clear_row(uint row) {
     assert(row < row_limit(), "oob");
+    // Cleare total count - indicator of polimorphic call site.
+    // An additional receiver will be recorded in the cleaned row
+    // during next call execution.
+    set_count(0);
     set_receiver(row, NULL);
     set_receiver_count(row, 0);
   }