killbill-memoizeit

diff --git a/util/src/test/java/com/ning/billing/mock/MockProduct.java b/util/src/test/java/com/ning/billing/mock/MockProduct.java
index ea341b0..a7d091f 100644
--- a/util/src/test/java/com/ning/billing/mock/MockProduct.java
+++ b/util/src/test/java/com/ning/billing/mock/MockProduct.java
@@ -16,6 +16,7 @@
 
 package com.ning.billing.mock;
 
+import com.ning.billing.catalog.api.Limit;
 import com.ning.billing.catalog.api.Product;
 import com.ning.billing.catalog.api.ProductCategory;
 
@@ -104,4 +105,14 @@ public class MockProduct implements Product {
                 createRedPaintJob()
         };
     }
+
+    @Override
+    public Limit[] getLimits() {
+        return new Limit[0];
+    }
+
+    @Override
+    public boolean compliesWithLimits(String unit, double value) {
+        return false;
+    }
 }