Spring-Security DAOAuthenticationProvider asks for ID for authentication - spring-mvc

Question

I am using Spring-Security on top of a Spring-MVC application. I have my own implementation of UserDAO, userDetailsService. I am trying to authenticate by checking from database(ofcourse). I reach till the login page, everything seems to be working fine, but when I login, I get an error :
ERROR:
org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter - An internal error occurred while trying to authenticate the user.
org.springframework.security.authentication.InternalAuthenticationServiceException: Provided id of the wrong type for class com.WirTauschen.model.User. Expected: class java.lang.Integer, got class java.lang.String
at org.springframework.security.authentication.dao.DaoAuthenticationProvider.retrieveUser(DaoAuthenticationProvider.java:110)
I do not know where am I retrieving or working with user's id. I am posting the code below.
LoginService :
#Service("userDetailsService")
public class LoginServiceImpl implements UserDetailsService{
#Autowired private UserDao userDao;
#Autowired private Assembler assembler;
#Override
#Transactional
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
UserDetails userDetails = null;
User user = userDao.findByName(username);
if(user == null) { throw new UsernameNotFoundException("Wrong username or password");} //Never specify which one was it exactly
return assembler.buildUserFromUserEntity(user);
}
}
Assembler
#Service("assembler")
public class Assembler {
#Transactional(readOnly = true)
User buildUserFromUserEntity(com.WirTauschen.model.User userEntity){
String username = userEntity.getUsername();
String password = userEntity.getPassword();
// int id = userEntity.getId();
boolean enabled = userEntity.isActive();
boolean accountNonExpired = userEntity.isAccountNonExpired();
boolean credentialsNonExpired = userEntity.isCredentialsNonExpired();
boolean accountNonLocked = userEntity.isAccountNonLocked();
Collection<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
authorities.add(new SimpleGrantedAuthority("ROLE_USER"));
User user1 = new User(username,password,enabled,accountNonExpired,credentialsNonExpired,accountNonLocked,authorities);
return user1;
}
}
User :
#Entity
#Table(name="registration")
public class User implements UserDetails{
private static final GrantedAuthority USER_AUTH = new SimpleGrantedAuthority("ROLE_USER");
#Id
#Column(name="id")
private String id=UUID.randomUUID().toString();
// #GeneratedValue(strategy = GenerationType.SEQUENCE,generator = "my_entity_seq_gen")
//#SequenceGenerator(name ="my_entity_seq_gen", sequenceName = "MY_ENTITY_SEQ")
#OneToMany
private Set<ProductBasic> productBasic;
#Column(name = "email")
private String email;
#Column(name = "username")
private String Username;
#Column(name = "displayname")
private String DisplayName;
#Column(name = "password")
private String password;
#Column(name = "companyname")
private String CompanyName;
#Column(name = "firstname")
private String FirstName;
#Column(name = "middlename")
private String MiddleName;
private String role="ROLE_USER";
#Transient
private final String PERMISSION_PREFIX = "ROLE_USER";
#Transient
private List<GrantedAuthority> authorities;
public User() {
this.authorities = new ArrayList<GrantedAuthority>();
authorities.add(USER_AUTH);
}
public User(String Username, String password, String Role){
this.Username = Username;
this.password = password;
this.role = Role;
if((role == null) || role.isEmpty()){ role = "ROLE_USER";}
}
#Override
public Collection<? extends GrantedAuthority> getAuthorities() {
return authorities;
}
Update sequence code
#Id
#Column(name = "sortcanvasid")
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "sortcanvas_gen")
#SequenceGenerator(name = "sortcanvas_gen", sequenceName = "sortcanvas_seq")
private int sortCanvasId;

Answer 1

Seems that your User class not implementing UserDetails Morever it might not be having proper return type of the getID method