Course – Black Friday 2025 – NPI EA (cat= Baeldung)
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Yes, we're now running our Black Friday Sale. All Access and Proare33% off untilnextMonday:

>>EXPLORE ACCESS NOW

Partner – Orkes – NPI EA (cat=Spring)
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Modern software architecture is often broken. Slow deliveryleads to missed opportunities, innovation is stalled due toarchitectural complexities, and engineering resources areexceedingly expensive.

Orkes is the leading workflow orchestration platformbuilt 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 canfocus on building mission critical applications without worryingabout infrastructure maintenance to meet goals and, simply put,taking new products live faster and reducing total cost ofownership.

Try a14-Day FreeTrial of Orkes Conductor today.

Partner – Orkes – NPI EA (tag=Microservices)
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Modern software architecture is often broken. Slow deliveryleads to missed opportunities, innovation is stalled due toarchitectural complexities, and engineering resources areexceedingly expensive.

Orkes is the leading workflow orchestration platformbuilt 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 canfocus on building mission critical applications without worryingabout infrastructure maintenance to meet goals and, simply put,taking new products live faster and reducing total cost ofownership.

Try a14-DayFree Trial of Orkes Conductor today.

eBook – Guide Spring Cloud – NPI EA (cat=Spring Cloud)
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Let's get started with a Microservice Architecture with SpringCloud:

>> Join Pro and download theeBook

eBook – Mockito – NPI EA (tag = Mockito)
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Mocking is an essential part of unit testing, and the Mockitolibrary makes it easy to writeclean and intuitive unittests for your Java code.

Get started with mocking and improve your application testsusing ourMockito guide:

Download theeBook

eBook – Reactive – NPI EA (cat=Reactive)
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Spring 5 added support for reactive programming with the SpringWebFlux module, which has been improved upon ever since. Getstarted with the Reactor project basics andreactive programmingin Spring Boot:

>> Join Pro anddownload the eBook

eBook – Java Streams – NPI EA (cat=Java Streams)
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Since its introduction in Java 8, the Stream API has become astaple of Java development. The basic operations like iterating,filtering, mapping sequences of elements are deceptively simple touse.

But these can also be overused and fall into some commonpitfalls.

Toget a better understanding on how Streams work and howto combine them with other language features, check out our guideto Java Streams:

>> Join Proand download the eBook

eBook – Jackson – NPI EA (cat=Jackson)
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Do JSON right with Jackson

Download theE-book

eBook – HTTP Client – NPI EA (cat=Http Client-Side)
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Get the most out of the Apache HTTP Client

Download theE-book

eBook – Maven – NPI EA (cat = Maven)
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Get Started with Apache Maven:

Download theE-book

eBook – Persistence – NPI EA (cat=Persistence)
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Working on getting your persistence layer right with Spring?

Explore theeBook

eBook – RwS – NPI EA (cat=Spring MVC)
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Building a REST API with Spring?

Download the E-book

Course – LS – NPI EA (cat=Jackson)
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Get started with Spring and Spring Boot, through theLearnSpring course:

>> LEARNSPRING
Course – RWSB – NPI EA (cat=REST)
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Explore Spring Boot 3 and Spring 6 in-depth through building afullREST API with the framework:

>>The New “REST With Spring Boot”

Course – LSS – NPI EA (cat=Spring Security)
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Yes, Spring Security can be complex, from the more advancedfunctionality within the Core to the deep OAuth support in theframework.

I built the security material astwo full courses - Core andOAuth, to get practical with these more complex scenarios. Weexplore when and how to use each feature andcode through it onthe backing project.

You can explore the course here:

>> Learn SpringSecurity

Partner – Orkes – NPI EA (cat=Java)
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Modern software architecture is often broken. Slow deliveryleads to missed opportunities, innovation is stalled due toarchitectural complexities, and engineering resources areexceedingly expensive.

Orkes is the leading workflow orchestration platformbuilt 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 canfocus on building mission critical applications without worryingabout infrastructure maintenance to meet goals and, simply put,taking new products live faster and reducing total cost ofownership.

Try a14-DayFree Trial of Orkes Conductor today.

Course – LSD – NPI EA (tag=Spring Data JPA)
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Spring Data JPA is a great way to handle thecomplexity ofJPA with the powerful simplicity of Spring Boot.

Get started with Spring Data JPA through the guided referencecourse:

>> CHECK OUT THECOURSE

Partner – Moderne – NPI EA (cat=Spring Boot)
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Refactor Java code safely — and automatically — withOpenRewrite.

Refactoring big codebases by hand is slow, risky, and easy toput off. That’s where OpenRewrite comes in. The open-sourceframework for large-scale, automated code transformations helpsteams modernize safely and consistently.

Each month, the creators and maintainers of OpenRewrite atModerne run live, hands-on training sessions — one for newcomersand one for experienced users. You’ll see how recipes work, how toapply them across projects, and how to modernize code withconfidence.

Join the next session,bring your questions, and learn how to automate the kind of workthat usually eats your sprint time.

Partner – LambdaTest – NPI EA (cat=Testing)
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Regression testing is an important step in the releaseprocess, to ensure that new code doesn't break the existingfunctionality. As the codebase evolves, we want to run these testsfrequently to help catch any issues early on.

The best way to ensure these tests run frequently on anautomated basis is, of course,to include them in the CI/CDpipeline. This way, the regression tests will executeautomatically whenever we commit code to the repository.

In this tutorial, we'll see how to create regression tests usingSelenium, and then include them in our pipelineusing GitHubActions:, to berun on the LambdaTest cloud grid:

>> How to Run SeleniumRegression Tests With GitHub Actions

Course – Black Friday 2025 – NPI (cat=Baeldung)
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Yes, we're now running our Black Friday Sale. All Access and Proare33% off untilnextMonday:

>> EXPLOREACCESS NOW

The Spring Framework is a mature, powerful and highly flexible framework focused on building web applications in Java.

One of the core benefits of Spring is that it takes care of most of the low-level aspects of building the application to allow us to actually focus on features and business logic.

Another strong point is that, while the framework is quite mature and well-established, it’s very actively maintained and has a thriving dev community. This makes it quite up to date and aligned with the Java ecosystem right now.

Of course, there’s a lot to learn to work well with Spring.

Let’s get started.

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Spring Core Basics

We’ll start with some core aspects of the framework first:

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Spring Boot Basics

Next, let’s explore the basics of Spring Boot:

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Spring MVC

The Spring MVC framework is the foundation of building web applications with Spring.

Let’s start with some of the basics of building the MVC-style web application:

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Spring REST

Let’s explore the RESTful support in Spring MVC:

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Spring Persistence

Spring supports most persistence solutions out there:

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Spring Data

Spring supports various technologies to access data:

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Testing with Spring

Finally, let’s explore testing support in Spring:

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Other Spring Tutorials

Course – Black Friday 2025 – NPI EA (cat= Baeldung)
announcement - icon

Yes, we're now running our Black Friday Sale. All Access and Proare33% off untilnextMonday:

>>EXPLORE ACCESS NOW

Partner – Orkes – NPI EA (cat = Spring)
announcement - icon

Modern software architecture is often broken. Slow deliveryleads to missed opportunities, innovation is stalled due toarchitectural complexities, and engineering resources areexceedingly expensive.

Orkes is the leading workflow orchestration platformbuilt 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 canfocus on building mission critical applications without worryingabout infrastructure maintenance to meet goals and, simply put,taking new products live faster and reducing total cost ofownership.

Try a14-Day FreeTrial of Orkes Conductor today.

Partner – Orkes – NPI EA (tag = Microservices)
announcement - icon

Modern software architecture is often broken. Slow deliveryleads to missed opportunities, innovation is stalled due toarchitectural complexities, and engineering resources areexceedingly expensive.

Orkes is the leading workflow orchestration platformbuilt 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 canfocus on building mission critical applications without worryingabout infrastructure maintenance to meet goals and, simply put,taking new products live faster and reducing total cost ofownership.

Try a14-DayFree Trial of Orkes Conductor today.

eBook – HTTP Client – NPI EA (cat=HTTP Client-Side)
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TheApache HTTP Client is a very robust library, suitablefor both simple and advanced use cases whentesting HTTPendpoints. Check out our guide covering basic request andresponse handling, as well as security, cookies, timeouts, andmore:

>> Downloadthe eBook

eBook – Java Concurrency – NPI EA (cat=Java Concurrency)
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Handling concurrency in an application can be a tricky processwith manypotential pitfalls. A solid grasp of thefundamentals will go a long way to help minimize these issues.

Get started with understanding multi-threaded applications withourJava Concurrency guide:

>>Download the eBook

eBook – Java Streams – NPI EA (cat=Java Streams)
announcement - icon

Since its introduction in Java 8, the Stream API has become astaple of Java development. The basic operations like iterating,filtering, mapping sequences of elements are deceptively simple touse.

But these can also be overused and fall into some commonpitfalls.

Toget a better understanding on how Streams work and howto combine them with other language features, check out our guideto Java Streams:

>> Join Proand download the eBook

eBook – Persistence – NPI EA (cat=Persistence)
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Working on getting your persistence layer right with Spring?

Explore the eBook

Course – LS – NPI EA (cat=REST)

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Get started with Spring Boot and with core Spring,through theLearn Spring course:

>> CHECK OUTTHE COURSE

Partner – Moderne – NPI EA (tag=Refactoring)
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Modern Java teams move fast — but codebasesdon’t always keep up. Frameworks change, dependencies drift, andtech debt builds until it starts to drag on delivery. OpenRewritewas built to fix that: an open-source refactoring engine thatautomates repetitive code changes while keeping developer intentintact.

The monthly training series, led by the creators and maintainersof OpenRewrite at Moderne, walks through real-world migrations andmodernization patterns. Whether you’re new to recipes or ready towrite your own, you’ll learn practical ways to refactor safely andat scale.

If you’ve ever wished refactoring felt as natural — and as fast— as writing code,this is a goodplace to start.

Course – Black Friday 2025 – NPI (All)
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Yes, we're now running our Black Friday Sale. All Access and Proare33% off untilnextMonday:

>> EXPLOREACCESS NOW

eBook Jackson – NPI EA – 3 (cat = Jackson)
Do JSON right with Jackson - book cover
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Do JSON right with Jackson
Download the E-book