1 files changed, 4 insertions, 0 deletions
diff --git a/server/src/test/java/com/vaadin/data/BinderCustomPropertySetTest.java b/server/src/test/java/com/vaadin/data/BinderCustomPropertySetTest.java
index 65bfb36c95..f9609aa47a 100644
--- a/server/src/test/java/com/vaadin/data/BinderCustomPropertySetTest.java
+++ b/server/src/test/java/com/vaadin/data/BinderCustomPropertySetTest.java
@@ -59,6 +59,10 @@ public class BinderCustomPropertySetTest {
         public Class<String> getType() {
             return String.class;
         }
+        
+        public Class<?> getPropertyHolderType(){
+            return Map.class;
+        }
 
         @Override
         public String getName() {