Yes, we're now running our Black Friday Sale. All Access and Pro are 33% off until 2nd December, 2025:
Partner – Orkes – NPI EA (cat=Spring)
Modern software architecture is often broken. Slow delivery leads to missed opportunities, innovation is stalled due to architectural complexities, and engineering resources are exceedingly expensive.
Orkes is the leading workflow orchestration platform built to enable teams to transform the way they develop, connect, and deploy applications, microservices, AI agents, and more.
With Orkes Conductor managed through Orkes Cloud, developers can focus on building mission critical applications without worrying about infrastructure maintenance to meet goals and, simply put, taking new products live faster and reducing total cost of ownership.
Try a 14-Day Free Trial of Orkes Conductor today.
Partner – Orkes – NPI EA (tag=Microservices)
Modern software architecture is often broken. Slow delivery leads to missed opportunities, innovation is stalled due to architectural complexities, and engineering resources are exceedingly expensive.
Orkes is the leading workflow orchestration platform built to enable teams to transform the way they develop, connect, and deploy applications, microservices, AI agents, and more.
With Orkes Conductor managed through Orkes Cloud, developers can focus on building mission critical applications without worrying about infrastructure maintenance to meet goals and, simply put, taking new products live faster and reducing total cost of ownership.
Try a 14-Day Free Trial of Orkes Conductor today.
eBook – Guide Spring Cloud – NPI EA (cat=Spring Cloud)
Let's get started with a Microservice Architecture with Spring Cloud:
eBook – Mockito – NPI EA (tag = Mockito)
Mocking is an essential part of unit testing, and the Mockito library makes it easy to write clean and intuitive unit tests for your Java code.
Get started with mocking and improve your application tests using our Mockito guide:
eBook – Reactive – NPI EA (cat=Reactive)
Spring 5 added support for reactive programming with the Spring WebFlux module, which has been improved upon ever since. Get started with the Reactor project basics and reactive programming in Spring Boot:
eBook – Java Streams – NPI EA (cat=Java Streams)
Since its introduction in Java 8, the Stream API has become a staple of Java development. The basic operations like iterating, filtering, mapping sequences of elements are deceptively simple to use.
But these can also be overused and fall into some common pitfalls.
To get a better understanding on how Streams work and how to combine them with other language features, check out our guide to Java Streams:
eBook – Jackson – NPI EA (cat=Jackson)
eBook – HTTP Client – NPI EA (cat=Http Client-Side)
eBook – Maven – NPI EA (cat = Maven)
eBook – Persistence – NPI EA (cat=Persistence)
eBook – RwS – NPI EA (cat=Spring MVC)
Course – LS – NPI EA (cat=Jackson)
Course – RWSB – NPI EA (cat=REST)
Explore Spring Boot 3 and Spring 6 in-depth through building a full REST API with the framework:
Course – LSS – NPI EA (cat=Spring Security)
Yes, Spring Security can be complex, from the more advanced functionality within the Core to the deep OAuth support in the framework.
I built the security material as two full courses - Core and OAuth, to get practical with these more complex scenarios. We explore when and how to use each feature and code through it on the backing project.
You can explore the course here:
Partner – Orkes – NPI EA (cat=Java)
Modern software architecture is often broken. Slow delivery leads to missed opportunities, innovation is stalled due to architectural complexities, and engineering resources are exceedingly expensive.
Orkes is the leading workflow orchestration platform built to enable teams to transform the way they develop, connect, and deploy applications, microservices, AI agents, and more.
With Orkes Conductor managed through Orkes Cloud, developers can focus on building mission critical applications without worrying about infrastructure maintenance to meet goals and, simply put, taking new products live faster and reducing total cost of ownership.
Try a 14-Day Free Trial of Orkes Conductor today.
Course – LSD – NPI EA (tag=Spring Data JPA)
Spring Data JPA is a great way to handle the complexity of JPA with the powerful simplicity of Spring Boot.
Get started with Spring Data JPA through the guided reference course:
Partner – Moderne – NPI EA (cat=Spring Boot)
Refactor Java code safely — and automatically — with OpenRewrite.
Refactoring big codebases by hand is slow, risky, and easy to put off. That’s where OpenRewrite comes in. The open-source framework for large-scale, automated code transformations helps teams modernize safely and consistently.
Each month, the creators and maintainers of OpenRewrite at Moderne run live, hands-on training sessions — one for newcomers and one for experienced users. You’ll see how recipes work, how to apply them across projects, and how to modernize code with confidence.
Join the next session, bring your questions, and learn how to automate the kind of work that usually eats your sprint time.
Partner – LambdaTest – NPI EA (cat=Testing)
Regression testing is an important step in the release process, to ensure that new code doesn't break the existing functionality. As the codebase evolves, we want to run these tests frequently to help catch any issues early on.
The best way to ensure these tests run frequently on an automated basis is, of course, to include them in the CI/CD pipeline. This way, the regression tests will execute automatically whenever we commit code to the repository.
In this tutorial, we'll see how to create regression tests using Selenium, and then include them in our pipeline using GitHub Actions:, to be run on the LambdaTest cloud grid:
Course – Black Friday 2025 – NPI (cat=Baeldung)
Yes, we're now running our Black Friday Sale. All Access and Pro are 33% off until 2nd December, 2025:
The adoption numbers in the Java IDE ecosystem have always been interesting to watch.
So, this year, when I ran the regular Java and Spring survey, I decided to include the IDE question:
What is your main IDE?
And 2255 responses later – here’s what the market share looks like for the major players:
It definitely is a tight race between Eclipse in IntelliJ – both of them effectively hold about half of the market.
What’s even more interesting is understanding these numbers in the context of the ZeroTurnaround 2014 survey – which had a similar sample size – 2164 answers.
The 2014 data has Eclipse at a slightly higher market share – 52%, and IntelliJ at only 33% of market.
The trend is clear – Eclipse has been slowly shedding users, and IntelliJ IDEA has been picking up these users as well as a good chunk of the Netbeans and other numbers.















