--- old/src/share/vm/ci/ciMethodData.hpp	2013-10-17 18:54:49.922883413 +0200
+++ new/src/share/vm/ci/ciMethodData.hpp	2013-10-17 18:54:49.518419908 +0200
@@ -100,6 +100,10 @@
     return valid_ciklass(type(i));
   }
 
+  bool maybe_null(int i) const {
+    return was_null_seen(type(i));
+  }
+
 #ifndef PRODUCT
   void print_data_on(outputStream* st) const;
 #endif
@@ -113,6 +117,10 @@
     return valid_ciklass(type());
   }
 
+  bool maybe_null() const {
+    return was_null_seen(type());
+  }
+
 #ifndef PRODUCT
   void print_data_on(outputStream* st) const;
 #endif
@@ -143,7 +151,7 @@
     assert(has_arguments(), "no arg type profiling data");
     return args()->valid_type(i);
   }
-
+  
   intptr_t return_type() const {
     assert(has_return(), "no ret type profiling data");
     return ret()->type();
@@ -154,6 +162,14 @@
     return ret()->valid_type();
   }
 
+  bool argument_maybe_null(int i) const {
+    return args()->maybe_null(i);
+  }
+
+  bool return_maybe_null() const {
+    return ret()->maybe_null();
+  }
+
 #ifndef PRODUCT
   void print_data_on(outputStream* st) const;
 #endif
@@ -260,6 +276,14 @@
     return ret()->valid_type();
   }
 
+  bool argument_maybe_null(int i) const {
+    return args()->maybe_null(i);
+  }
+
+  bool return_maybe_null() const {
+    return ret()->maybe_null();
+  }
+
 #ifndef PRODUCT
   void print_data_on(outputStream* st) const;
 #endif
@@ -305,6 +329,10 @@
     return parameters()->valid_type(i);
   }
 
+  bool parameter_maybe_null(int i) const {
+    return parameters()->maybe_null(i);
+  }
+
 #ifndef PRODUCT
   void print_data_on(outputStream* st) const;
 #endif