Problems when creating a new parameter for a parametric role

Question

I'm trying to create a new parameter for a parametric role, but it seems that it is never updated, because the BPM engine does not return any error.
The scenario is: I have a process that has the role "Brands_Admin", the brands are populated by Web Service dynamically, then the parameters of the role would be those brands. In this case, if a new brand is registered (WS returns a new brand), I simply create a new parameter for the role through the "process administrator" of the BPM Enterprise.
I'm trying to create the new parameter as follows:
dirSession                 = DirectorySession.currentEngineSession;
dirOrganizationalRole       = DirOrganizationalRole.fetch(session : dirSession, id : "Brands_Admin");
String[] parametricRoles       = dirOrganizationalRole.parametricValues;
parametricRolesCount      = parametricRoles.length();
parametricRoles[parametricRolesCount]      = "NEW_BRAND";
dirOrganizationalRole.parametricValues      = parametricRoles;
dirOrganizationalRole.update();
dirOrganizationalRole.refresh();
for (int i=0; i<dirOrganizationalRole.parametricValues.length(); i++) {
     logMessage(dirOrganizationalRole.parametricValues);
In the code above, the BPM Studio will print the new parameter correctly, but in next activity (like a Screenflow) when I try to get the parameters of that role again, there are only the parameters that were registered using the BPM Studio, the parameters that are created programmatically not appear.
Anyone know the reason?
An user with the same problem: http://forums.tangosol.com/forums/thread.jspa?threadID=839253&tstart=1

Answer 1

When a project that contains this logic to create a new parameter for a parametric role programmatically is deployed in BPM Enterprise, some strange behaviours occurs.
The first is that I cannot see through the process administrator the new parameter that was created for the parametric role.
The second is that if I create this new parameter through process administrator and associate an user to the role that contains the new parameter I cannot access the deployment process. In workspace (authenticated with user that is associated with the role that contains the new parameter) I cannot see anything about the process.