Cannot open Swagger UI in its Version 3 in my Spring Boot Example

I have a problem about opening swagger ui in my Spring Boot Example.

I get this kind of error when I access to localhost:8080/swagger-ui or localhost:8080/root-api-name:swagger-ui

Securing GET /springboot-blog-rest-api/swagger-ui
2022-07-22 01:38:58.820 DEBUG 30576 --- [nio-8080-exec-4] s.s.w.c.SecurityContextPersistenceFilter : Set SecurityContextHolder to empty SecurityContext
2022-07-22 01:38:58.820 DEBUG 30576 --- [nio-8080-exec-4] o.s.s.w.a.AnonymousAuthenticationFilter  : Set SecurityContextHolder to anonymous SecurityContext
2022-07-22 01:38:58.820 DEBUG 30576 --- [nio-8080-exec-4] o.s.s.w.a.i.FilterSecurityInterceptor    : Failed to authorize filter invocation [GET /springboot-blog-rest-api/swagger-ui] with attributes [authenticated]
2022-07-22 01:38:58.820 DEBUG 30576 --- [nio-8080-exec-4] s.s.w.c.SecurityContextPersistenceFilter : Cleared SecurityContextHolder to complete request
2022-07-22 01:38:58.820 DEBUG 30576 --- [nio-8080-exec-4] o.s.security.web.FilterChainProxy        : Securing GET /error
2022-07-22 01:38:58.821 DEBUG 30576 --- [nio-8080-exec-4] s.s.w.c.SecurityContextPersistenceFilter : Set SecurityContextHolder to empty SecurityContext
2022-07-22 01:38:58.821 DEBUG 30576 --- [nio-8080-exec-4] o.s.s.w.a.AnonymousAuthenticationFilter  : Set SecurityContextHolder to anonymous SecurityContext
2022-07-22 01:38:58.821 DEBUG 30576 --- [nio-8080-exec-4] o.s.security.web.FilterChainProxy        : Secured GET /error
2022-07-22 01:38:58.821 DEBUG 30576 --- [nio-8080-exec-4] a.DefaultWebInvocationPrivilegeEvaluator : filter invocation [/error] denied for AnonymousAuthenticationToken [Principal=anonymousUser, Credentials=[PROTECTED], Authenticated=true, Details=WebAuthenticationDetails [RemoteIpAddress=0:0:0:0:0:0:0:1, SessionId=null], Granted Authorities=[ROLE_ANONYMOUS]]

org.springframework.security.access.AccessDeniedException: Access is denied

I used springfox-swagger2 version 3 , springfox-boot-starter version 3 and lastly springfox-swagger-ui version 2.9.

How can I fix my issue?

Here is my SwaggerConfig File.

@Configuration
@EnableSwagger2
public class SwaggerConfig {

    public static final String AUTHORIZATION_HEADER = "Authorization";

    private ApiKey apiKey(){
        return new ApiKey("JWT", AUTHORIZATION_HEADER, "header");
    }

    private ApiInfo apiInfo(){
        return new ApiInfo(
                "Spring Boot Blog REST APIs",
                "Spring Boot Blog REST API Documentation",
                "1",
                "Terms of service",
                new Contact("Name", "website-address", "Email"),
                "License of API",
                "API license URL",
                Collections.emptyList()
        );
    }

    @Bean
    public Docket api(){
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .securityContexts(Arrays.asList(securityContext()))
                .securitySchemes(Arrays.asList(apiKey()))
                .select()
                .apis(RequestHandlerSelectors.any())
                .paths(PathSelectors.any())
                .build();
    }

    private SecurityContext securityContext(){
        return SecurityContext.builder().securityReferences(defaultAuth()).build();
    }

    private List<SecurityReference> defaultAuth(){
        AuthorizationScope authorizationScope = new AuthorizationScope("global", "accessEverything");
        AuthorizationScope[] authorizationScopes = new AuthorizationScope[1];
        authorizationScopes[0] = authorizationScope;
        return Arrays.asList(new SecurityReference("JWT", authorizationScopes));
    }
}

Here is my SecurityConfig file

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig {


    @Autowired
    private JwtAuthenticationEntryPoint authenticationEntryPoint;

    @Bean
    public JwtAuthenticationFilter jwtAuthenticationFilter(){
        return  new JwtAuthenticationFilter();
    }

    @Bean
    PasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }
    
    @Bean
    public WebSecurityCustomizer webSecurityCustomizer() {
        return (web) -> web.ignoring().antMatchers("/v2/api-docs/**", 
                "/swagger-ui/**","/swagger-resources/**","/swagger-ui.html","/webjars/**");
    }

    @Bean
    protected SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        
        http
                .csrf().disable()
                .exceptionHandling()
                .authenticationEntryPoint(authenticationEntryPoint)
                .and()
                .sessionManagement()
                .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .authorizeRequests((authorize) -> authorize
                        .antMatchers(HttpMethod.GET, "/api/v1/**").permitAll()
                        .antMatchers("/api/v1/auth/**").permitAll()
                        .anyRequest()
                        .authenticated()
                );
        http.addFilterBefore(jwtAuthenticationFilter(), UsernamePasswordAuthenticationFilter.class);
        return http.build();
    }

    @Bean
    public AuthenticationManager authenticationManager(
            AuthenticationConfiguration authenticationConfiguration) throws Exception {
        return authenticationConfiguration.getAuthenticationManager();
    }
    


}