Questions about example "Dynamic JDBC Credentials for Model 1 and Model 2"

Question

Hello,
i am trying to set up dynamic JDBC authentication in my ADF BC application - i want that it'll work like in Forms - a dababase user with the proper priveleges can log into my ADF BC application using his database login and password, and work with application.
I've read the paper "How To Support Dynamic JDBC Credentials" at
http://www.oracle.com/technology/products/jdev/howtos/10g/dynamicjdbchowto.html
and test the very useful example, created by Steve Muench, which i've got from
http://radio.weblogs.com/0118231/stories/2004/09/23/notYetDocumentedAdfSampleApplications.html#14
The example works, but when i'm transfer its realisation in my application - it doesnt work the right way. The problems is the following:
1. I can connect and work successfully only under the owner of the schema - the username and password of which i've wrote in the "jbo.server.internal_connection" string of the AM configuration.
2. When i'm connecting under other users, which have all the rights to work with the db objects, used by application, i got the main page with the "Access Denied" message - as i have no priveleges to the tables.
3. The big surprise is that if i am entering the fake username and password - the random letter combination - then i am getting the same behavior as in p.2 - the main page with the "Access Denied" message!
And the last question is:
4. Is it possible to set up the dynamic jdbc authentication using the build-in JDeveloper functions - i mean not to use that additional code, not override the ADF Binding Filter, and so on, but set up the similar behaviour (users log in using their db names and passwords) in several minutes following the standart documentation?
Thanks in advance!

Answer 1

One more question:
I have 2 independent Application Modules in my application - to make the 2 transactions independent one form another, when working with different parts of project - and while using dinamic JDBC authentification, the user connects only in the first AM under the username he's entered, but the 2nd AM works under the predefined earlier (during development) connection for that AM.
How can i make the 2nd AM to be connected under the logging in user (same as the 1rst AM)?