Hi!
I installed from Eclipse update site this:
http://downloads.jboss.com/drools/updatesite3.5/
and open BPMN files only with flow editor of drools.
However, when I edit the mapping parameters and mapping results - the xmlns:g="http://www.jboss.org/drools/flow/gpd" is being deleted and when I open it in text editor to fix it - the result mapping and parameters turns to be something like null=_12_mytaskname