Priority is BLOCKER because this issue blocks RFE verification https://issues.jboss.org/browse/EAP7-538

There must be credential store integration with core management as is mentioned in requirements of RFE.

management/security-realm
management/security-realm/authentication/truststore keystore-password
management/security-realm/server-identity/ssl key-password and keystore-password
management/security-realm/server-identity/secret
management/security-realm/authentication/users

But security-realm is deprecated, these resources have this description:

The security-realm configuration is deprecated and may be removed or moved in future versions.