=== modified file 'dhis-2/dhis-services/dhis-service-analytics/src/main/java/org/hisp/dhis/analytics/data/DefaultQueryPlanner.java'
--- dhis-2/dhis-services/dhis-service-analytics/src/main/java/org/hisp/dhis/analytics/data/DefaultQueryPlanner.java	2013-03-20 12:40:07 +0000
+++ dhis-2/dhis-services/dhis-service-analytics/src/main/java/org/hisp/dhis/analytics/data/DefaultQueryPlanner.java	2013-04-04 18:08:40 +0000
@@ -86,7 +86,12 @@
     {
         String violation = null;
         
-        if ( params == null || params.getDimensions().isEmpty() )
+        if ( params == null )
+        {
+            throw new IllegalQueryException( "Params cannot be null" );
+        }
+        
+        if ( params.getDimensions().isEmpty() )
         {
             violation = "At least one dimension must be specified";
         }