<tt>AuthenticationStrategy</tt> implementation that requires <em>at least one</em> configured realm to successfully process the submitted <tt>AuthenticationToken</tt> during the log-in attempt. <p/> <p>This means any number of configured realms do not have to support the submitted log-in token, or they may be unable to acquire <tt>AuthenticationInfo</tt> for the token, but as long as at least one can do both, this Strategy implementation will allow the log-in process to be successful. <p/> <p>Note that this implementation will aggregate the account data from <em>all</em> successfully consulted realms during the authentication attempt. If you want only the account data from the first successfully consulted realm and want to ignore all subsequent realms, use the {@link FirstSuccessfulStrategy FirstSuccessfulAuthenticationStrategy} instead.