JBoss - Check Vault, Users and JNDI entries

Almost all applications that we develop requires the use of encrypted strings, users with some specific role, or jndi entries. It is very common that, during the process of configuration, something goes wrong and you will have to lost much time trying to figure out what.

For example, your application publishes a web service, which is secured with security constraints, and only users with a proper role can consume it. The server is configured, the application is deployed, but when you try to invoke the service you get an 403 Unauthorized error. What it's wrong?, the user is not in the Application Realm of the server, the user credentials are not right, the vault password is wrong, the user has not the suitable rol?

I prepared a quite simple web app in order to test these problems easily: https://github.com/evazquezma/jboss/releases
Once deployed, from the index page, you can go to these pages:

• http://localhost:8080/jboss-utils/vault
  Introduce a string in vault format and check the clear value.
• http://localhost:8080/jboss-utils/users
  Introduce an user credentials and check if she exists, and which roles she has.
• http://localhost:8080/jboss-utils/jndi
  Introduce a jndi key and check if it exists, its value and its class name.