Click Security > Secure administration, applications, and infrastructure.
Under Authentication, click Java Authentiation and Authorization Service configuration > J2C authentication data. The JAAS - J2C authentication data panel is displayed.
Enter a unique alias, a valid user ID, a valid password, and a short description (optional). The user ID must be valid on the target database.
Click OK or Apply. No validation for the user ID and password is required.
The newly created entry is visible without restarting the application server process to use in the data source definition. But the entry is only in effect after the server is restarted.