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6 points

JUnit 5 - how to add text description to test method?

I am looking for easy way to add custom text description for executed test methods. When test fails or successes, I want to see my own text instead of generated one. Is there some extension or paramet...

1 answers

333

8 points

Java - Is it thread-safe to declare Jackson's ObjectMapper as a static field?

I am confused about using Jackson's com.fasterxml.jackson.databind.ObjectMapper class instance as static field in the class because of possible thread-safety issues. I have found in information where ...

1 answers

413

6 points

Spring Boot 3 - "Whitelabel Error Page" getting in new project

Any Idea why new Spring Boot 3 project return "Whitelabel Error Page" when I open in the web browser? Whitelabel Error Page in Spring Boot 3.

1 answers

580

5 points

Is there way to configure Java 19 (or upper) in VS Code?

As I noticed, VS Code supports currently Java 8, 11 and 19. Is there way to configure Java 19 (or upper) in VS Code? JDK installation in VS Code.

1 answers

526

8 points

Lombok - what is the best way to omit one filed Setter/Getter in Lombok?

I am looking for the best way to omit one field setter/getter in Lombok. In my case all getters are defined on the entire class level. I am looking for annotation that is able to disable automatic gen...

1 answers

388

5 points

Java - [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin (module jdk.compiler does not "opens com.sun.tools.javac.processing" to unnamed module)

I have used to create Maven project. After upgrade from Java 11 to Java 17, Maven is not able to build my project. The error: Used software: Used configuration: Used pom.xml file:

1 answers

526

9 points

Java - equivalent for JavaScript's String charCodeAt() method

I am looking for the best way to achieve JavaScript String charCodeAt() method equivalent in Java.

2 answers

963

7 points

Java - how to check installed Node.js version in Java?

How can I check my Node.js version from Java source code?

1 answers

390

6 points

Spring Boot 3 - How to solve 403 Forbidden status for POST request?

I have decided to upgrade my application to Spring Boot 3 attaching Spring Boot Security dependency. And now I am not able to do POST requests. REST API returns 403 Forbidden status. Any idea how to s...

1 answers

650

5 points

Maven - Fatal error compiling: error: invalid target release: 17

I have decided to upgrade my Spring Boot 2 application to Spring Boot 3. Java 17 was installed, system PATH evironment variable also was updated. I use Winsows 11. But mvn clean install commmand retun...

1 answers

466

3 points

Spring Boot 2 - Caused by: java.lang.Exception: Socket bind failed: [13] [Permission denied]

Why on Windows my Spring Boot 2 application starts without any problems, and on Linux not? Java exception:

1 answers

635

3 points

Spring Boot 3 - How can I perform client API GET request with request body using RestTemplate?

I want to perform a GET request with body. How to do that or what library should I use? I am currently using Java 17, Spring Boot 3.0.1 and RestTemplate.

1 answers

1060

5 points

Spring Boot - best way to prevent sending overhead data in URL per each API request?

I am developing web service that provides API that intermediates in some operations with desired web service. Application concept: My web service, needs in each request the following path prefix: It m...

1 answers

366

6 points

Java - What is difference between List<?> and List<Object>?

As in the question. I am thinking what is difference between List<?> and List<Object>? Each class extends Object, so why it was introduced?

1 answers

636

6 points

Java - Do I need to implement equals and hash code in treemap?

1 answers

475

2 points

Java TreeMap Comparable vs Comparator, can someone share practical example how to use it?

1 answers

517

5 points

Spring Boot 2 - Exception in thread "main" java.lang.UnsupportedClassVersionError: gallery/GalleryApplication has been compiled by a more recent version of the Java Runtime (class file version 55.0).

I have got issue with my Spring Boot 2 application. When I run my application using IntelliJ IDEA everything works fine. When I try to run it from command line application throws error. Anyone knows w...

1 answers

458

4 points

Java - Exception in thread "main" java.io.InvalidClassException: logic.User; class invalid for deserialization

I would like to write program that deserialize object using ObjectInputStream class but it throws exception, even if ObjectOutputStream class was used to serialize object. Exception details:

1 answers

436

8 points

Selenium java - How to solve selenium error SessionNotCreatedException: session not created: This version of ChromeDriver only supports Chrome version ?

How to solve selenium error SessionNotCreatedException: session not created: This version of ChromeDriver only supports Chrome version ? Exception in thread "main" org.openqa.selenium.SessionNotCreate...

1 answers