diff -r 01f3c1314ca3 -r bf066a5ca2f7 rt/emul/mini/src/main/java/java/lang/Object.java
--- a/rt/emul/mini/src/main/java/java/lang/Object.java	Wed Feb 27 17:24:50 2013 +0100
+++ b/rt/emul/mini/src/main/java/java/lang/Object.java	Wed Feb 27 17:28:48 2013 +0100
@@ -50,8 +50,13 @@
             // ignore
         }
     }
+    @JavaScriptBody(args = {}, body = "var p = vm.java_lang_Object(false);" +
+        "p.toString = Object.prototype.toString__Ljava_lang_String_2;"
+    )
+    private static native void registerToString();
     static {
         registerNatives();
+        registerToString();
     }
 
     /**