Spring Boot OAuth2 with JDBC Using Custom UserDetailService - spring-security

Question

I am trying to secure my Spring Boot Rest API using OAuth2.0 with Spring security and want to store OAuth tokens (Access Token and Refresh Token) in JDBC database.
For Username and Password validation i have created CustomUserDetailService.
I am getting following error-
{
"timestamp": 1480042650103,
"status": 401,
"error": "Unauthorized",
"message": "Bad credentials",
"path": "/oauth/token"
}
My Code is -
Oauth2Config
#Configuration
#EnableAuthorizationServer
#EnableResourceServer
public class AuthorizationServerConfiguration {
#Configuration
#EnableResourceServer
protected static class ResourceServerConfiguration extends ResourceServerConfigurerAdapter {
#Autowired
private TokenStore tokenStore;
#Override
public void configure(ResourceServerSecurityConfigurer resources) {
resources.tokenStore(tokenStore);
}
#Override
public void configure(HttpSecurity http) throws Exception {
http
.anonymous().disable()
.authorizeRequests().anyRequest().authenticated();
}
}
#Configuration
#EnableAuthorizationServer
protected static class OAuth2ServerConfiguration extends AuthorizationServerConfigurerAdapter {
#Autowired
private AuthenticationManager authenticationManager;
#Autowired
private DataSource dataSource;
private PasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
#Autowired
private CustomUserDetailService customUserDetailService;
#Bean
public JdbcTokenStore tokenStore() {
return new JdbcTokenStore(dataSource);
}
#Bean
protected AuthorizationCodeServices authorizationCodeServices() {
return new JdbcAuthorizationCodeServices(dataSource);
}
#Override
public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
security.passwordEncoder(passwordEncoder);
}
#Override
public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
endpoints
.authorizationCodeServices(authorizationCodeServices())
.authenticationManager(authenticationManager)
.tokenStore(tokenStore())
.approvalStoreDisabled()
.userDetailsService(customUserDetailService);
}
#Override
public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
clients
.jdbc(dataSource);
}
}
}
WebSecurityConfig
#Configuration
#EnableWebSecurity
#EnableGlobalMethodSecurity(prePostEnabled = true)
class WebSecurityConfiguration extends WebSecurityConfigurerAdapter {
#Autowired
private UserDetailsService userDetailsService;
#Autowired
public void configure(AuthenticationManagerBuilder auth) throws Exception {
auth
.userDetailsService(userDetailsService)
.passwordEncoder(new BCryptPasswordEncoder());
}
#Override
#Bean
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
}
CustomUserDetailService
#Service
public class CustomUserDetailService
implements UserDetailsService {
#Override
public UserDetailsService loadUserByUsername(String username) throws UsernameNotFoundException {
// I tested this logic and works fine so i avoid this lines
return userDetailsService;
}
}
application.properties
security.oauth2.client.client-id=my-trusted-client
security.oauth2.client.client-secret=secret
security.oauth2.client.authorized-grant-types=password,refresh_token,authorization_code,implicit
security.oauth2.client.scope=read,write,trust
security.oauth2.client.resource-ids=oauth2-resource
security.oauth2.client.access-token-validity-seconds=120
security.oauth2.client.refresh-token-validity-seconds=600
Please suggest me how can i solve this error ??