Hi all,
I have 3 days trying to make this works, but without exit. I use jboss 3.2.3:

In the server side the login_config.xml is configured with a DatabaseServerLoginModule and works well with form basic authentication in my Jsp of test. No problem, the server authenticates the users throught the MySql database.
The login-config.xml have

 <application-policy name="admin">
 <authentication>
 <login-module code="org.jboss.security.ClientLoginModule" flag="required">
 </login-module>
 <login-module code="org.jboss.security.auth.spi.DatabaseServerLoginModule" flag = "required">
 <module-option name = "dsJndiName">java:/MySqlDS</module-option>
 <module-option name = "principalsQuery">select password from user where login=?</module-option>
 <module-option name = "rolesQuery">select role, 'Roles' from userrole where login=?</module-option>
 </login-module>
 </authentication>
 </application-policy>

Now, I have a client application with the code:

lc = new LoginContext("login-app", handler);
lc.login();

my handler is :

CallbackHandler handler = new CallbackHandler() {
public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
 for (int i = 0; i < callbacks.length; i++) {
 if (callbacks instanceof NameCallback) {
 NameCallback nc = (NameCallback)callbacks;
 nc.setName("my_login");
 } else if (callbacks instanceof PasswordCallback) {
 PasswordCallback pc = (PasswordCallback)callbacks;
 pc.setPassword("my_password".toCharArray());
 } else {
 throw new UnsupportedCallbackException(callbacks, "Callback no reconocido");
 }
 }
 }
 };

I use the auth.conf file:

login-app {

 org.jboss.security.ClientLoginModule required;

};

The login success and establish the SecurityAssociation principal as expected.

The problem raise when I try to access to a SessionBean, then the server throws:

java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
 java.rmi.ServerException: EJBException:; nested exception is:
 javax.ejb.EJBException: checkSecurityAssociation; CausedByException is:
 Authentication exception, principal=null

Someone can help me ? I'm desperate.
Thanks in advance.