Not getting the jwt access token

After implementing the spring security, application is running but I am not getting the access token and those services where I have implemented security are not working only getting unauthorized error.

Within the controller class I would be getting the token but I think I am missing something for that I am not getting it now

this is the API for login

Login Controller

@PostMapping("/auth/login")
    public ResponseEntity<?> login(@RequestBody @Valid UsersDto request) {
        
        SecurityContext context = (SecurityContext) SecurityContextHolder.getContext();
        
            Authentication authentication = authManager
                    .authenticate(new UsernamePasswordAuthenticationToken(context.getAuthentication().getPrincipal(),context.getAuthentication().getCredentials()));

            UserEntity user = (UserEntity) authentication.getPrincipal();
            String accessToken = jwtUtil.generateAccessToken(user);
            AuthResponse response = new AuthResponse(user.getName(), accessToken);
            System.out.println("Getting");
            return ResponseEntity.ok().body(response);
}

    This is the config file



@EnableWebSecurity
@SuppressWarnings(value = { "warningOption", "deprecation" })
@Configuration
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class ApplicationSecurity extends WebSecurityConfigurerAdapter {

    @Autowired
    private UserRepository userRepo;


    @Autowired
    private UserDetailsService userDetailsService;


      @Bean
        public AuthenticationManager getAuthenticationManager() throws Exception {
            return super.authenticationManagerBean();
        }
    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService).passwordEncoder(encodePWD());
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.csrf().disable();
        http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);

        http.authorizeRequests().antMatchers("/users/add").permitAll().antMatchers("/users/auth/login").permitAll()
                .anyRequest().authenticated().and().httpBasic();

    }

    @Bean
    public BCryptPasswordEncoder encodePWD() {
        return new BCryptPasswordEncoder();
    }

}

UserDetailsclass

public class CustomizedUserPrincipal implements UserDetails {

    
    private static final long serialVersionUID = 8632209412694363798L;

    private UserEntity userEntity;


    public UserEntity getUserEntity() {
        return userEntity;
    }

    public void setUserEntity(UserEntity user) {
        this.userEntity = user;
    }

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        
        return null;
         
    }

    @Override
    public String getPassword() {
        // TODO Auto-generated method stub
        return userEntity.getPassword();
    }

    @Override
    public String getUsername() {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public boolean isAccountNonExpired() {
        // TODO Auto-generated method stub
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        // TODO Auto-generated method stub
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        // TODO Auto-generated method stub
        return true;
    }

    @Override
    public boolean isEnabled() {
        // TODO Auto-generated method stub
        return true;
    }