Gordon,
By default the Spring Security addon simply sets up a static user in applicationContext-security.xml:
Code:
<user-service>
<user name="admin" password="8c6976e5b5410415bde908bd4dee15dfb167a9c873fc4bb8a81f6f2ab448a918" authorities="ROLE_ADMIN"/>
***<user name="user" password="04f8996da763b7a969b1028ee3007569eaf3a635486ddab211d512c85b9df8fb" authorities="ROLE_USER"/>
</user-service>
This is of course just a token to get you started and as you mentioned you would replace that with a JDBC, LDAP, CAS, etc backend. So if you remove that user-service from your config above, you have deleted the admin user.
If your browser still shows these details after the container restart that is probably due to the fact that it has automatically stored your form fields. You can simply clear these form completions and all should be fine.
-Stefan
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