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Documentation (Spring has a lot of documentation), tutorials, books (for some types of things), blogs, etc. LLMs may help, but without certain levels of actual knowledge, it’s just a bandaid, and you’...

Can you please give some more details what files, what kind of project setup you have? Are you interested in contents of files in a project that you open in IntelliJ or do you want to analyse the IDE ...

First of all, thank you for your reply and sorry that it took me so long to notice your answer, being busy with other projects lately. You're right, I was actually looking for a solution, and Stack ...

I'm configuring the SecurityFilterChain like the following in one of my projects: @Bean public SecurityFilterChain securityFilterChain( final HttpSecurity http, final ...

The only way you can decide on a route to follow, is to look at the job requirements in your local area. It is not likely that any company will employ you as a fressher if you are not in the local ...

If you stick with Jackson 2 (preferred to upgrade to Jackson 3 as that is the default in Spring Boot 4). You will need a Jackson2ObjectMapperBuilderCustomizer which will allow you to modify the ...

It exists since Jackson 3. Since you are using Spring Boot 4 you should also use Jackson 3. Here's a reference to the method: rebuild(). It returns a MapperBuilder. If you're still using Jackson 2 ...

Sorry, mistakenly upvoted, but there is no way change it now. My question is, is there a rebuild() method exists in ObjectMapper ?

You can try to inject ObjectMapper, which should be the default one, then call rebuild() to get a new builder with the settings of the existing object, make your changes to the builder, then call ...

I found a solution by reading this migration guide. To be able to modify the default ObjectMapper you need to create a bean of this type @Bean public JsonMapperBuilderCustomizer jacksonCustomizer() { ...

This may work for your case: Use a custom LoginUrlAuthenticationEntryPoint instance: public class LocaleLoginUrlAuthenticationEntryPoint extends LoginUrlAuthenticationEntryPoint { private final ...

In Spring Boot 4, don’t create a new ObjectMapper bean if you just want to add some settings. If you do that, you will override the default one and lose configurations from application.yml or ...

The reason you are seeing /error as the path and a generic message is that by the time your AuthenticationEntryPoint hands the exception to the HandlerExceptionResolver, the request has already been &...

I did not need to find that ...osxkeychain. Just give access to everyone. Thanks for help.

How to delete comment? Where can I find ""docker-credential-osxkychain" ?

How to proceed ? ...........................

Here’s what to do: When prompted, enter your Mac login password (the same one you use to unlock your computer). Click Always Allow so Docker can access your credentials automatically in the future. ...

I think it is just a standard stackoverflow question rather then best practices. Anyway could provide some code?

The piece that is missing is this: Without @Transactional, every call to deleteAllById() runs inside its own short‑lived Hibernate session. So without a long‑running transaction, Hibernate’s ...

I would double, and even triple check that the object is not null. You may see in your code that you are indeed setting a SecurityContext with an Authentication that has a Principal with your specific ...

This works with Spring Boot 4.0.3: <dependencyManagement> <dependencies> <dependency> <groupId>com.google.cloud</groupId> <...

No, it's not backwards compatible. A lot of it will work, but not everything. You should use Spring Boot 4 with it.

Understood Magnus and Thank you for your thoughts , as you have 25 years of experience in Java so , can you guide me a little bit , i have made 2 projects in Spring boot , one purely backend using ...

Dependency Management Add the GridDB Java Client to your pom.xml. If you want Spring-like abstractions, use the official GridDB Spring Data support, but the raw Java client is often preferred for ...

Ran into the same problem today. Found out that the fields in my class were private and graphql requires public fields to be mapped to its schema.

If your bean calls its own method directly, you bypass the Spring proxy, so Caching won’t work. public class Service { this.method() // like this method() // or like this @Cacheable or @CacheEvict ...

The core issue is that virtual threads remove the natural backpressure that platform threads provide. With a FixedThreadPool(10), you'd never have more than 10 concurrent accept() calls. With virtual ...

The "empty PersistentBag" issue in a @Transactional context might be caused by Persistence Context Pollution (First-Level Cache). Let's try to force Hibernate to "forget" the ...

As you have told in the comments that you are getting output like: category: { id: 1, title: "test", products: [] } The reason for this is line: @OneToMany(mappedBy = "...

If your goal is to display the name inside the header and keep a custom data attribute for JavaScript or CSS, do this: <h3 data-th-test="${name}" th:text="'Employee List for ' + ${...

With Spring Boot 4 you need to change the dependency since mostly you need a starter dependency. Change testImplementation 'org.springframework.security:spring-security-test' with testImplementation '...

Solution To fix this issue, you need to add @Transactional to the method in either the Controller or the Service layer (the Service layer is preferred). In this test, you are calling the /api/auth/...

There is no special HTTP status code for "no changes applied", but you can send the same 200 OK status if the update did not affect any rows, because the end result in the database is the ...

First, the complexity of this challenge is cannot be answered by just few lines of code, you are essentially asking for a solution + vendor choice. So maybe this question is not even belong to SO. ...

As one of the earlier comments noted, the issue is not with locating the ocijdbc23.dll file, but calling the corresponding method within the ocijdbc23.dll file. What function or method are you trying ...

This is not a Spring Boot or Tomcat bug but an issue of classpath flattening in embedded containers (vs traditional standalone WAR deployment). When mixing container implementations and API jars on ...

[So] is about programming. For questions about design try https://softwareengineering.stackexchange.com/.

If you come to this in 2026 looking for answers for the Spring Boot 4 + Migrating to Jackson 3 case, maybe this Jackson Config will help. My advice is to use the n52 jts module, as it's still ...

Happened to me as well, when calling jib:dockerBuild maven target (loads an image into local docker registry). Probably, after update of local Docker Desktop on Windows 10 to 4.58.0. Updating jib ...

Since you need to get at various parts of the JSON, you should make columns for those parts in the table. Extract them when receiving the data. Also, do cononical transformations as desired (remove ...

Native MDC and Spring Security solution is @Bean public ExecutorService virtualThreadExecutor() { return Executors.newThreadPerTaskExecutor(r -> { final Map<String, ...

when looking in the response from your curl call we can see the following: WWW-Authenticate: Bearer resource_metadata="https://example.westeurope-01.azurewebsites.net/.well-known/oauth-protected-...

You can use the streaming API exposed by SpringAI that usually returns a Flux which you can align it with your coroutines without any blocking. Sample Controller for SSE: @GetMapping("/chat",...

Spring Boot's Environment flattens map properties (e.g., test.map-property.foo=1). Because there is no single "Map" object in the source environment to pass to your Converter, Spring Boot ...

Have you tried using Micrometer Context Propagation and wrap the executor with ContextExecutorService so MDC and SecurityContext ThreadLocals are captured and restored automatically. import io....

As confirmed in a previous post. The official migration guide states the following: 'In the event of a compilation failure in your tests for TestRestTemplate, add a test-scoped dependency on org....

Your Lombok version doesn't support onConstructor_. The trailing underscore syntax was introduced in Lombok 1.18.4. Below that, the parameter is onConstructor (no underscore), and it uses a different ...

Extend EcsStructuredLogFormatter directly This is the correct fix. Override the service-writing logic to include service.id: public class CustomEcsFormatter extends EcsStructuredLogFormatter { ...

For tool/function inputs Spring AI generates only standard JSON schema. You can try using oneOf in combination with const and title instead of the usual enum pattern. "myEnum": { "...

You can try below workarounds as well. 1.Combining Spring Cloud 4.2.x with Spring AI M6 may cause HTTP client conflicts. If you are allowed to upgrade the Spring AI version, then changing to 1.0.0 ...