diff --git a/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/server/dataaccess/WellContentQueryResult.java b/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/server/dataaccess/WellContentQueryResult.java
index e20ef78e8672022c7527f4442165430104e1a188..d0b53a9a15d4f5f4a3afedaa3a24a8b3500f4c04 100644
--- a/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/server/dataaccess/WellContentQueryResult.java
+++ b/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/server/dataaccess/WellContentQueryResult.java
@@ -56,4 +56,9 @@ public class WellContentQueryResult extends ExperimentReferenceQueryResult
     @Deprecated
     public String material_content_type_code;
 
+    public static void main(String[] args)
+    {
+        System.out.println(IScreeningQuery.WELLS_FOR_MATERIAL_ID_SELECT);
+    }
+
 }