diff -r 6193e735f4d1 -r c4e57ec5f0df rt/vm/src/main/java/org/apidesign/vm4brwsr/VMLazy.java
--- a/rt/vm/src/main/java/org/apidesign/vm4brwsr/VMLazy.java	Fri Oct 11 09:58:03 2013 +0200
+++ b/rt/vm/src/main/java/org/apidesign/vm4brwsr/VMLazy.java	Mon Oct 14 16:44:55 2013 +0200
@@ -42,6 +42,11 @@
     throws IOException, ClassNotFoundException {
         return new VMLazy(loader, arguments).load(name, false);
     }
+
+    static Object reload(Object loader, String name, Object[] arguments, byte[] arr) 
+    throws IOException, ClassNotFoundException {
+        return new VMLazy(loader, arguments).defineClass(arr, name, false);
+    }
     
     static byte[] loadBytes(Object loader, String name, Object[] arguments) throws Exception {
         return Zips.loadFromCp(arguments, name);
@@ -54,7 +59,11 @@
         if (arr == null) {
             throw new ClassNotFoundException(name);
         }
-//        beingDefined(loader, name);
+        
+        return defineClass(arr, name, instance);
+    }
+
+    private Object defineClass(byte[] arr, String name, boolean instance) throws IOException {
         StringBuilder out = new StringBuilder(65535);
         out.append("var loader = arguments[0];\n");
         out.append("var vm = loader.vm;\n");