diff --git a/classpath/java/lang/Math.java b/classpath/java/lang/Math.java
index 6ffe5879b9..2d3f2bbad4 100644
--- a/classpath/java/lang/Math.java
+++ b/classpath/java/lang/Math.java
@@ -63,6 +63,7 @@ public final class Math {
   }
 
   public static double random() {
+    // TODO
     throw new UnsupportedOperationException();
   }