Erro Spring Security

21/10/2011 07:56:21 org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
21/10/2011 07:56:26 org.apache.catalina.core.StandardContext listenerStart
GRAVE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'validaUsuario': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void com.rfmagni.tcc.springsecurity.seguranca.ValidaUsuario.setManager(org.springframework.security.authentication.AuthenticationManager); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [org.springframework.security.authentication.AuthenticationManager] is defined: expected single matching bean but found 2: [org.springframework.security.authentication.ProviderManager#0, org.springframework.security.authenticationManager]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1074)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
	at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4723)
	at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226)
	at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void com.rfmagni.tcc.springsecurity.seguranca.ValidaUsuario.setManager(org.springframework.security.authentication.AuthenticationManager); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [org.springframework.security.authentication.AuthenticationManager] is defined: expected single matching bean but found 2: [org.springframework.security.authentication.ProviderManager#0, org.springframework.security.authenticationManager]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:589)
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:282)
	... 21 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [org.springframework.security.authentication.AuthenticationManager] is defined: expected single matching bean but found 2: [org.springframework.security.authentication.ProviderManager#0, org.springframework.security.authenticationManager]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:796)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:703)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:547)
	... 23 more
21/10/2011 07:56:27 org.apache.catalina.core.ApplicationContext log
INFO: Closing Spring root WebApplicationContext

@Component("validaUsuario")
public class ValidaUsuario implements UserDetailsService, UserDetails {

    @Qualifier(value = "manager")
    private AuthenticationManager manager;
    private UsuarioDAO userDAO;
    private Usuario usuario;

    @Autowired
    public void setManager(AuthenticationManager manager) {
        this.manager = manager;
    }

    @Autowired
    public void setUserDAO(UsuarioDAO userDAO) {
        this.userDAO = userDAO;
    }

    @Autowired
    public void setUsuario(Usuario usuario) {
        this.usuario = usuario;
    }

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException, DataAccessException {
        UserDetails user = (UserDetails) userDAO.procurarUsuario(username);
        return user;
    }

    @Override
    public Collection<GrantedAuthority> getAuthorities() {
        List<GrantedAuthority> listaAutorizacoes = new ArrayList<GrantedAuthority>();
        for (Permissao permissao : usuario.getPermissaoCollection()) {
            listaAutorizacoes.add(new GrantedAuthorityImpl(permissao.getPermissaoPK().getAutorizacao()));
        }
        return listaAutorizacoes;
    }

    @Override
    public String getPassword() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    @Override
    public String getUsername() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    @Override
    public boolean isAccountNonExpired() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    @Override
    public boolean isAccountNonLocked() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    @Override
    public boolean isCredentialsNonExpired() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    @Override
    public boolean isEnabled() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    public Authentication validarLogin(String usuario, String senha) {
        UsernamePasswordAuthenticationToken upat = new UsernamePasswordAuthenticationToken(usuario, senha);
        Authentication autenticacao = manager.authenticate(upat);
        return autenticacao;
    }
}