=== modified file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/node/LinearNodePipeline.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/node/LinearNodePipeline.java	2014-06-25 13:32:36 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/node/LinearNodePipeline.java	2014-06-26 05:19:55 +0000
@@ -61,6 +61,11 @@
         for ( NodeTransformerWithArgs nodeTransformerWithArgs : nodeTransformers )
         {
             node = nodeTransformerWithArgs.transformer.transform( node, nodeTransformerWithArgs.args );
+
+            if ( node == null )
+            {
+                return null;
+            }
         }
 
         return node;