diff -r 2377bb30dd1b -r ca781bc82662 emul/src/main/java/java/lang/Math.java
--- a/emul/src/main/java/java/lang/Math.java	Tue Oct 30 23:33:29 2012 +0100
+++ b/emul/src/main/java/java/lang/Math.java	Wed Jan 23 14:57:10 2013 +0100
@@ -641,6 +641,7 @@
      * to {@code 0.0} and less than {@code 1.0}.
      * @see Random#nextDouble()
      */
+    @JavaScriptBody(args={}, body="return Math.random();")
     public static double random() {
         throw new UnsupportedOperationException();
     }