Spring Security authentication logging

Question

I am using Spring Security 3.1 to authenticate users for a website. When a login fails because spring security is unable to connect to the database, I get the following statement in my log:

2012-07-12 11:42:45,419 [ajp-bio-8009-exec-1] DEBUG      org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter - Authentication request failed: org.springframework.security.authentication.AuthenticationServiceException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database!

My question is, why is this a DEBUG statement instead of an ERROR? I have to wade through a whole lot of debug statements just to find the actual error.

EDIT

Here is my authentication manager:

<bean id="securityDataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName" value="java:comp/env/securityDS"/>
    <property name="resourceRef" value="true"/>
</bean>

<bean id="encoder" class="org.springframework.security.crypto.password.StandardPasswordEncoder" />

<security:authentication-manager>
    <security:authentication-provider>
        <security:password-encoder ref="encoder" />
        <security:jdbc-user-service 
            data-source-ref="securityDataSource"
            authorities-by-username-query="SELECT username, authority FROM login WHERE username = ?"
            users-by-username-query="SELECT username, password, enabled FROM login WHERE username = ?"
        />        
    </security:authentication-provider>
</security:authentication-manager>

Answer 1

My solution:

@Component
public class AuthenticationEventListener implements ApplicationListener<AbstractAuthenticationEvent> {

   private static Logger logger = Logger.getLogger(AuthenticationEventListener.class);

   @Override
   public void onApplicationEvent(AbstractAuthenticationEvent authenticationEvent) {
      if (authenticationEvent instanceof InteractiveAuthenticationSuccessEvent) {
         // ignores to prevent duplicate logging with AuthenticationSuccessEvent
         return;
      }
      Authentication authentication = authenticationEvent.getAuthentication();
      String auditMessage = "Login attempt with username: " + authentication.getName() + "\t\tSuccess: " + authentication.isAuthenticated();
      logger.info(auditMessage);
   }

}

No other configurations are required.