Yes, we're now running our Black Friday Sale. All Access and Pro are 33% off until 2nd December, 2025:
Baeldung Weekly Review 47
Last updated: July 21, 2016
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.
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.
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:
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:
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:
Explore Spring Boot 3 and Spring 6 in-depth through building a full REST API with the framework:
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:
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.
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:
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.
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:
Yes, we're now running our Black Friday Sale. All Access and Pro are 33% off until 2nd December, 2025:
At the very beginning of 2014 I decided to start to track my reading habits and share the best stuff here, on Baeldung.
Curating my reading has made it more purposeful and diverse – and I’m hopefully providing value to you as well by allowing the best content of the week to raise to the top.
Here we go…
1. Java and Spring
>> Tuning Java Servers
In depth article on how to first understand and then improve the performance of a production Java server. Good stuff.
>> Making Elasticsearch Groovy-er
Elasticsearch now has a Groovy client – looking good.
>> Unit Testing exercise with FizzBuzz and Mockito
Who knew FizzBuzz can be even more useful – I’ve primarily been using it during interviewing. Very cool to see some mocking demonstrated with it as well.
>> Spring Boot 1.2.0.RC2 Available Now
Spring Boot is moving forward at a very fast pace, with second RC and better support for Java EE.
I’ve been using Boot in my own projects, both client work and personal and it is indeed a very helpful piece of kit.
>> Externalizing session state for a Spring-boot application using spring-session
A solid piece on externalizing all session state to Redis with the help of the new Spring-Session project. Helps a lot when you’re running a cluster.
A few other webinar recordings and releases to play with:
-
>> SpringOne2GX 2014 Replay: Running Your Spring Apps in the Cloud
-
>> SpringOne2GX 2014 Replay: Developing Microservices for PaaS with Spring and Cloud Foundry
-
>> SpringOne2GX 2014 Replay: Creating REST-ful, Hypermedia-based Micro-services with Spring Boot
-
>> Webinar Replay: Spring Boot and JRebel 6.0
-
>> Spring Cloud 1.0.0.M3 Available Now
2. Technical and Musings
>> People Deserve The “What”
Great advice on how to delegate to knowledge workers so that you have good results long term. Or – if you are being delegated to – a frame you can use to letter understand your own situation and – if needed – change it.
Especially in the beginning, it’s a good idea to optimize for learning and growth.
>> Because Reading is Fundamental
Very interesting read how to encourage useful behavior in communities by displaying useful metrics next to each user, instead of metrics that won’t lead to good results.
>> Making Side Projects With New Technologies
If you’re reading my weekly reviews, then you’re probably at least somewhat passionate about your work – otherwise you wouldn’t be here. Now – consuming is well and good, but creating something new – that’s where the real learning happens.
This is a good and quick read going over why a side project is a good idea and how it will definitely benefit you in the long run.
>> Designing APIs for Machines
Building an API for other developers to consume is not an easy task. Every design decision needs to be carefully considered, especially once the API is in use by others.
Now – building an API that’s going to be consumed not by developers, but by other connected devices – in huge numbers no less – is a different kind of hard. Insightful read about what that looks like.
3. Comics
Let’s end the week with some XKCD:
>> Fiction Rule of Thumb
>> Escalators
>> Resonance
4. Pick of the Week
I recently introduced the “Pick of the Week” section here in my “Weekly Review”. If you’re already on my email list – you got the pick already – hope you enjoyed it.
