What is your SQL Developer version and APEX Listener version ? What was the output from console when you got Cannot connect to DMUSER. HTTP/1.1 401 Unauthorized ?
Better if you could list you steps to reproduce the error.
Here are the software versions:
Oracle REST Data Services 2.0.6
Java(TM) Platform 1.7.0_40
Oracle IDE 126.96.36.199.78
I see this warning in the console window:
WARNING: A problem has been found decoding the password. Input length must be multiple of 16 when decrypting with padded cipher
Mar 17, 2014 9:22:08 AM oracle.jdeveloper.credential.model.CredentialInfoImpl decodePwdToCharArray
I see this warning in the SQL Dev log window
POST http://localhost:8090/ords/dataminer/oauth2/token HTTP/1.1
Authorization: Basic cDZ4eWNWLTJRY2VGbkZIa1d5SmxuQS4uOjFWa0F1VHJLUnYyNXZtTnZIUXM0RHcuLg==
Encoded entity contents: grant_type=password&username=DMUSER&password=DMUSER
Here is what I did:
1. Bring up the RESTful Services Panel from the View menu
2. Create a new RESTful Services connection and enter required info (host, port, server path, workspace, and user account)
By the way, my db is UTF-8.
Did you get a solution for this issue? how did you resolve ?
No, I haven't resolved the login problem. I was told to reinstall the product, but I don't have time to do that now.