When you create an ADF task flow based on a human task, you must select a task metadata file to generate the data control. This data control is used to lay out the content on the page and connect to the workflow service engine at execution time to retrieve task content and act on tasks.

The hwtaskflow.xml file is used to capture the details on connecting with the service engine. By default, it uses remote EJBs to connect to the workflow server. The SOA server URL and port are automatically determined by using WebLogic Server runtime MBeans. However, you can override these by explicitly specifying the URL and port information here.

Seed a user that has ORMI privileges so that the task details application can connect to the workflow service. You can seed this user by using Oracle Enterprise Manager Fusion Middleware Control.