Spring Security for OAuth (upgrade given sample to Spring 3)

[lean gyro]

https://spring.io/guides/tutorials/spring-boot-oauth2 Been going through this and trying to upgrade it to use spring 3.0 A lot of details looked transferrable but I'm getting unauthorized 401 on / (home page). I thought that the following would allow access without any auth restrictions for the given paths:

    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        logger.debug("Configuring SecurityFilterChain");
        SimpleUrlAuthenticationFailureHandler handler = new SimpleUrlAuthenticationFailureHandler("/");
        http
            .authorizeHttpRequests(authz -> authz
                    .requestMatchers("/").permitAll()
                    .requestMatchers("/error/**").permitAll()
                    .requestMatchers("/webjars/**").permitAll()
                    .anyRequest().authenticated()
            )

Also welcome any tips in general

[unique matrix]

<@&1004656351647117403> please have a look, thanks.

[lean gyro]

Including the file I extracted from the original main app class to hold the security in there.

[unique matrix]

@lean gyro

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[lean gyro]

I still need help 😔

[sacred isle]

try asking chat GPT steps or you can see whats error about and google it.

https://www.geeksforgeeks.org/implementing-oauth2-with-spring-security-a-step-by-step-guide/ :- please check out this link this may help

[lean gyro]

That linkedk page kind of appears to be an LLM output too, and I did ask the integrated Jetbrains AI Assistant (GPT4o model) but it's not apparent to it even after scanning the project dir.

I did find a Stackoverflow post with a potentially working example by a responder: https://stackoverflow.com/questions/78642561/java-spring-boot-3-spring-security-oauth2-unauthenticated-endpoint might bounce off their work and see if that provides a better outcome