JBoss EAP 8.1 Configuration Guide 11.15. Example Datasource Configurations contains old configuration format for datasource credentials (user-name and password).

• Old datasource user-name/password setting which can be used in the previous version but does not work with EAP 8.1+:

  <security>
      <user-name>db-user</user-name>
      <password>db-password</password>
  </security>
  

• Latest datasource user-name/password setting which follows the latest schema and can be used with EAP 8.1+:

  <security user-name="db-user" password="db-password"/>
  

The format for datasource credentials (user-name and password) changed in JBoss EAP 8.1 due to an update in its underlying datasources subsystem schema. This change originated in the upstream project, WildFly, as part of the work for ticket WFLY-18324 to streamline the configuration. The new schema (version 7.1 and later) requires credentials to be defined as attributes of the <security> element rather than as separate child elements. And JBoss EAP 8.1 incorporates the new schema version 7.2.