diff -r 3e7bff1b7b59 -r 9bbc4b8832b2 nashorn/src/jdk/internal/dynalink/beans/DynamicMethodLinker.java
--- a/nashorn/src/jdk/internal/dynalink/beans/DynamicMethodLinker.java	Wed Jul 03 14:08:00 2013 +0530
+++ b/nashorn/src/jdk/internal/dynalink/beans/DynamicMethodLinker.java	Wed Jul 03 12:39:28 2013 +0200
@@ -85,12 +85,12 @@
 
 import java.lang.invoke.MethodHandle;
 import java.lang.invoke.MethodHandles;
-import java.lang.invoke.MethodType;
 import jdk.internal.dynalink.CallSiteDescriptor;
 import jdk.internal.dynalink.linker.GuardedInvocation;
 import jdk.internal.dynalink.linker.LinkRequest;
 import jdk.internal.dynalink.linker.LinkerServices;
 import jdk.internal.dynalink.linker.TypeBasedGuardingDynamicLinker;
+import jdk.internal.dynalink.support.CallSiteDescriptorFactory;
 import jdk.internal.dynalink.support.Guards;
 
 /**
@@ -110,19 +110,18 @@
             return null;
         }
         final CallSiteDescriptor desc = linkRequest.getCallSiteDescriptor();
-        if(desc.getNameTokenCount() != 2 && desc.getNameToken(CallSiteDescriptor.SCHEME) != "dyn")  {
+        if(desc.getNameTokenCount() != 2 && desc.getNameToken(CallSiteDescriptor.SCHEME) != "dyn") {
             return null;
         }
         final String operator = desc.getNameToken(CallSiteDescriptor.OPERATOR);
         if(operator == "call") {
-            final MethodType type = desc.getMethodType();
-            final MethodHandle invocation = ((DynamicMethod)receiver).getInvocation(type.dropParameterTypes(0, 1),
-                    linkerServices);
+            final MethodHandle invocation = ((DynamicMethod)receiver).getInvocation(
+                    CallSiteDescriptorFactory.dropParameterTypes(desc, 0, 1), linkerServices);
             if(invocation == null) {
                 return null;
             }
-            return new GuardedInvocation(MethodHandles.dropArguments(invocation, 0, type.parameterType(0)),
-                    Guards.getIdentityGuard(receiver));
+            return new GuardedInvocation(MethodHandles.dropArguments(invocation, 0,
+                    desc.getMethodType().parameterType(0)), Guards.getIdentityGuard(receiver));
         }
         return null;
     }