public String getServiceSummaryVariableName(Process processDefinition) {
        for (Activity activity : processDefinition.getActivities()) {
            String attr = activity.getAttribute("serviceSummaryVariable");
            if (attr != null)
                return attr;
        }
        return null;
    }
public String getServiceSummaryVariableName ( Process processDefinition ) { for ( Activity activity : processDefinition . getActivities ( ) ) { String attr = activity . getAttribute ( "serviceSummaryVariable" ) ; if ( attr != null ) return attr ; } return null ; }
Walks through all activities looking for the attribute.