--- old/src/share/classes/java/lang/invoke/MethodType.java	2014-03-24 20:12:15.000000000 +0400
+++ new/src/share/classes/java/lang/invoke/MethodType.java	2014-03-24 20:12:14.000000000 +0400
@@ -731,13 +731,13 @@
 
     /*non-public*/
     boolean isViewableAs(MethodType newType) {
-        if (!VerifyType.isNullConversion(returnType(), newType.returnType()))
+        if (!VerifyType.isNullConversion(returnType(), newType.returnType(), true))
             return false;
         int argc = parameterCount();
         if (argc != newType.parameterCount())
             return false;
         for (int i = 0; i < argc; i++) {
-            if (!VerifyType.isNullConversion(newType.parameterType(i), parameterType(i)))
+            if (!VerifyType.isNullConversion(newType.parameterType(i), parameterType(i), true))
                 return false;
         }
         return true;