WebSecurityConfigurerAdapter 'Ошибка аутентификации: неверные учетные данные'

Question

я хочу проверить basi c с помощью 'basi c аутентификации' с помощью класса / login 'WebSecurityConfigurerAdapter', но когда я отправляю имя пользователя и пароль почтальоном, всегда получается 'Ошибка аутентификации: неверные учетные данные'

это мой 'WebSecurityConfigurerAdapter'

import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

import com.test.example.JWTAuthenticationProcessingFilter.JWTAuthenticationProcessingFilter;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

@Configuration
public class CustomWebSecurityConfigurerAdapter extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication().withUser("proSbeginner").password(passwordEncoder().encode("1234")).authorities("ADMIN");
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.csrf().disable().authorizeRequests().antMatchers("/").permitAll().antMatchers(HttpMethod.POST, "/login")
                .permitAll().anyRequest().authenticated().and()
                .addFilterBefore(new JWTAuthenticationProcessingFilter("/login", authenticationManager()),
                        UsernamePasswordAuthenticationFilter.class);
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
} 

это мой 'AbstractAuthenticationProcessingFilter'

package com.test.example.JWTAuthenticationProcessingFilter;

import org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.test.example.controller.UserCredentials;

import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.util.matcher.AntPathRequestMatcher;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Collections;

public class JWTAuthenticationProcessingFilter extends AbstractAuthenticationProcessingFilter {
    public JWTAuthenticationProcessingFilter(String url, AuthenticationManager manager) {
        super(new AntPathRequestMatcher(url));
        setAuthenticationManager(manager);
    }

    @Override
    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response)
            throws AuthenticationException, IOException, ServletException {
        UserCredentials credentials = new ObjectMapper().readValue(request.getInputStream(), UserCredentials.class);

        return getAuthenticationManager().authenticate(new UsernamePasswordAuthenticationToken(
                credentials.getUsername(), credentials.getPassword(), Collections.emptyList()));
    }
}

this. моя модель

package com.test.example.controller;


public class UserCredentials {
   private String username;
   private String password;

   public String getUsername() {
       return username;
   }

   public void setUsername(String username) {
       this.username = username;
   }

   public String getPassword() {
       return password;
   }

   public void setPassword(String password) {
       this.password = password;
   }
}