diff -r 00977607da34 -r 148e5441d916 src/share/vm/runtime/arguments.cpp
--- a/src/share/vm/runtime/arguments.cpp	Tue Sep 15 11:09:34 2009 -0700
+++ b/src/share/vm/runtime/arguments.cpp	Tue Sep 15 21:53:47 2009 -0700
@@ -2639,16 +2639,22 @@
 
   if (EnableInvokeDynamic && !EnableMethodHandles) {
     if (!FLAG_IS_DEFAULT(EnableMethodHandles)) {
-      warning("forcing EnableMethodHandles true to allow EnableInvokeDynamic");
+      warning("forcing EnableMethodHandles true because EnableInvokeDynamic is true");
     }
     EnableMethodHandles = true;
   }
   if (EnableMethodHandles && !AnonymousClasses) {
     if (!FLAG_IS_DEFAULT(AnonymousClasses)) {
-      warning("forcing AnonymousClasses true to enable EnableMethodHandles");
+      warning("forcing AnonymousClasses true because EnableMethodHandles is true");
     }
     AnonymousClasses = true;
   }
+  if ((EnableMethodHandles || AnonymousClasses) && ScavengeRootsInCode == 0) {
+    if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) {
+      warning("forcing ScavengeRootsInCode non-zero because EnableMethodHandles or AnonymousClasses is true");
+    }
+    ScavengeRootsInCode = 1;
+  }
 
   if (PrintGCDetails) {
     // Turn on -verbose:gc options as well