Hello users of iReport, My question is about subreports' return values (yes again ...) I read carefully topics about that on this forum but i can't find the solution of my issue. I have a master report which include 2 subreports. There are not displayed on it, they are only used to use another SQL query and send some data to the master. The 2 subs are working fine on there own (queries are good). But one of the sub just return null value to the master (the other one works fine !). I use exactly same method to send data (i use groups, calculation : System, same variable name on the master and sub ...) I attach the .jrxml of my three reports. The not working one is "demo_talend_subreport_obj.jrxml". Sorry to send lot of code like this but it seriously make me crazy ! Thanks for help, Eric