=== modified file 'dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/query/QueryUtils.java'
--- dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/query/QueryUtils.java	2015-06-02 03:30:57 +0000
+++ dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/query/QueryUtils.java	2015-06-02 03:59:21 +0000
@@ -102,7 +102,7 @@
         }
         else if ( Enum.class.isAssignableFrom( klass ) )
         {
-            Optional<? extends Enum<?>> enumValue = Enums.getIfPresent( (Class<? extends Enum>) klass, value );
+            Optional<? extends Enum<?>> enumValue = (Optional<? extends Enum<?>>) Enums.getIfPresent( (Class<? extends Enum>) klass, value );
 
             if ( enumValue.isPresent() )
             {