Yes, we're now running our Black Friday Sale. All Access and Pro are 33% off until 2nd December, 2025:
Java Web Weekly, Issue 132
Last updated: May 21, 2020
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 last year, I decided to track my reading habits and share the best stuff here, on Baeldung. Haven’t missed a review since.
Here we go…
1. Spring and Java
>> Implementing HAL hypermedia REST API using Spring HATEOAS [opencredo.com]
I’ve been talking about HATEOAS for such a long time now and consistently see clients get value out of it for not a lot of effort. And so of course this write get the first spot here in the review.
A solid, practical article detailing quite a bit of what you have to know when implementing a Hypermedia API with Spring.
>> How I Caused Confusion about Spring Boot [codecentric.de]
A quick writeup going beyond simple usecase and discussing some good practices of how configuration should be handled with Spring Boot.
>> How Functional Programming will (Finally) do Away With the GoF Patterns [jooq.org]
There’s a quote I can’t place right now – that goes something like this: Design Patterns are missing language features.
Java 8 gave us a much more powerful language, which of course changed the landscape when it comes to needing patterns. So I fully expect to keep seeing these style of writeup as Java 8 gets adopted and understood more and more.
>> Tabs vs Spaces: How They Write Java at Google, Twitter, Mozilla and Pied Piper [takipi.com]
Yeah, you read that right – tabs vs spaces! Back to trolling basics 🙂 – it made me reconsider my life choices.
Joking aside, it’s a fun read.
>> Spring Sweets: Using Groovy Configuration As PropertySource [jdriven.com]
Some interesting Groovy alternative configuration for handling properties in Spring.
>> Java 9 on the Brink of a Delivery Date and Scope Review [infoq.com]
Looks like we’re close to getting the real release date for Java 9.
Also worth reading:
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>> Spring Cloud Zuul – Writing a Filter [java-allandsundry.com]
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>> Hibernate Tips: How to order the elements of a relationship [thoughts-on-java.org]
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>> Data-driven tests in Junit5.0.0-SNAPSHOT [shino.de]
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>> Fast random shuffling [lemire.me]
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>> Gradle and Java 8 named method parameters (-parameters flag) [solidsoft.wordpress.com]
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>> How to lazy load entity properties with Hibernate [vladmihalcea.com]
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>> The Hitchhikers Guide to GitHub: 13 Java Projects You Should Try [takipi.com]
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>> Codename One Adds Support for Java Apps to Target the Universal Windows Platform [infoq.com]
Webinars and presentations:
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>> Comes Java EE With The Smallest Docker Images? [adam-bien.com]
Time to upgrade:
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>> Spring Framework 4.3.1 and 4.2.7 available now [spring.io]
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>> Spring Boot 1.3.6 available now [spring.io]
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>> Spring Boot 1.4.0.RC1 available now [spring.io]
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>> Spring Tool Suite 3.8.0 released [spring.io]
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>> First Hibernate OGM 5 maintenance release [in.relation.to] and >> First bug-fix release for ORM 5.2 [in.relation.to]
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>> Spring Session 1.2.1 Released [spring.io]
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>> Gradle Dependency Management Plugin 0.6.0 released [spring.io]
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>> Spring Cloud Brixton.SR2 is available [spring.io]
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>> Spring for Apache Kafka 1.0 and Spring Integration Kafka 2.0 go GA [spring.io]
2. Technical
>> Goldilocks Microservices [vanilla-java.github.io]
Sizing your microservices right and keeping the overall architecture flexible can definitely make or break an implementation; this article is about making the pragmatic choices that make sense for your particular scenario.
>> Adding service virtualization to your Continuous Delivery pipeline [ontestautomation.com]
A quick intro to a highly useful technique and trend that’s been picking up lots of momentum lately, and for good reason – making heavy use of virtualization within a CD pipeline.
Also worth reading:
3. Musings
>> Security insanity: how we keep failing at the basics [troyhunt.com]
A fantastic deep-dive into broken password security rules.
>> Does Github Enhance the Need for Code Review? [daedtech.com]
An three-decade look at the proprietary vs open source software world from the vantage point of the seminal work The Cathedral and the Bazaar.
>> Surviving The Dreaded Company Framework [daedtech.com]
Internal frameworks are a pain point with so many developers, give that for every one that makes sense, a hundred that don’t are built. I cringed when I first read this title.
>> With Commercial Licensing, Invest in Innovation, not Protection [jooq.org]
That’s good advice, and also scary if you actually have a product that the advice applies to. It’s also worth mentioning that the advice comes out of practical experience and not just out of “thinking about it a bit”.
Also worth reading:
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>> A message to all the tech teams out there: start doing Tech Trivias [odino.org]
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>> I’m a car enthusiast – bring on self-driving cars! [troyhunt.com]
4. Comics
And my favorite Dilberts of the week:
