final BCryptPasswordEncoder encoder = new BCryptPasswordEncoder();
String passwordHash = encoder.encode("123123");
final List<GrantedAuthority>autorities = new ArrayList<GrantedAuthority>();
autorities.add(new SimpleGrantedAuthority("USER"));
authenticationManagerBuilder
.userDetailsService(customUserDetailsService)
.and()
.inMemoryAuthentication()
.passwordEncoder(new BCryptPasswordEncoder())
.withUser("DefUser")
.password(passwordHash)
.authorities(autorities);

@Configuration
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .authorizeRequests()
                .anyRequest().authenticated()
                .and()
            .formLogin()
                .permitAll()
                .and()
            .logout()
                .permitAll();

    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        PasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        auth
            .inMemoryAuthentication()
                .passwordEncoder(passwordEncoder)
                .withUser("user")
                .password(passwordEncoder.encode("123"))
                .roles("USER");
    }

}