Java – no authenticationprovider found usernamepasswordauthenticationtoken

My web XML configuration is

<filter>
        <filter-name>springSecurityFilterChain</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>springSecurityFilterChain</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

Here is my security configuration

<intercept-url pattern="/*" access="ROLE_USER" />
    <intercept-url pattern="/*.ico"  filters="none" />


</http>

 <beans:bean id="customAuthenticationProvider" class="net.spring3.provider.MyAuthProvider"  />

    <authentication-manager>

        <authentication-provider ref="customAuthenticationProvider" /> 

    </authentication-manager>

This is my customauthprovider class

public class MyAuthProvider implements AuthenticationProvider  {


    @Override
    public boolean supports(Class<? extends Object> arg0) {
        // TODO Auto-generated method stub
        return false;
    }


     @SuppressWarnings("serial")
        private static Map<String,String> SIMPLE_USERS = new HashMap<String,String>(2) {{
            put("joe","joe");
            put("bob","bob");
        }};

        @SuppressWarnings("serial" )
        private static List<GrantedAuthority> AUTHORITIES = new ArrayList<GrantedAuthority>(1) {{
            add(new GrantedAuthorityImpl("ROLE_USER"));
        }};

        @Override
        public Authentication authenticate(Authentication auth) throws AuthenticationException
        {
            // All your user authentication needs
            System.out.println("==Authenticate Me==");
            if (SIMPLE_USERS.containsKey(auth.getPrincipal()) 
                && SIMPLE_USERS.get(auth.getPrincipal()).equals(auth.getCredentials()))
            {
                return new UsernamePasswordAuthenticationToken(auth.getName(),auth.getCredentials(),AUTHORITIES);
            }
            throw new BadCredentialsException("Username/Password does not match for " + auth.getPrincipal());
        }




}

This page displays the login form. When I enter Bob and Bob as login, the following error will be raised

Your login attempt was not successful,try again.

Reason: No AuthenticationProvider found for org.springframework.security.authentication.UsernamePasswordAuthenticationToken

I check the log at the debug level all. Here is what I get

FINE: Request is to process authentication
Nov 17,2011 5:37:36 AM org.springframework.context.support.AbstractApplicationContext publishEvent
FINEST: Publishing event in Root WebApplicationContext: org.springframework.security.authentication.event.AuthenticationFailureProviderNotFoundEvent[source=org.springframework.security.authentication.UsernamePasswordAuthenticationToken@ffff8dfd: Principal: sd; Credentials: [PROTECTED]; Authenticated: false; Details: org.springframework.security.web.authentication.WebAuthenticationDetails@fffe3f86: RemoteIpAddress: 127.0.0.1; SessionId: x4lg4vtktpw9; Not granted any authorities]
Nov 17,2011 5:37:36 AM org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter unsuccessfulAuthentication
FINE: Authentication request Failed: org.springframework.security.authentication.ProviderNotFoundException: No AuthenticationProvider found for org.springframework.security.authentication.UsernamePasswordAuthenticationToken

Does it help me?

Solution

As you have written in the comments, the problem is that you always return false in the supports () method of the automatic provider However, instead of always returning true, you should check the authentication you get:

public class MyAuthenticationProvider implements AuthenticationProvider,Serializable {

    @Override
    public boolean supports(Class<? extends Object> authentication) {
        return (UsernamePasswordAuthenticationToken.class.isAssignableFrom(authentication));
    }

    // ...
}