Yes, we're now running our Black Friday Sale. All Access and Pro are 33% off until 2nd December, 2025:
Baeldung Weekly Review 31
Last updated: August 6, 2021
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 track my reading habits and share the best stuff here, on Baeldung.
2014 has been quite the year, covering each week with a review. I’ve been doing a lot more reading to make sure I cover and curate stuff that has value and is actually worth reading.
Let me know in the comments if you’re finding my reviews interesting and useful.
Here we go…
1. Spring and Java
>> Spring Data JPA Tutorial: Auditing, Part Two [petrikainulainen]
A new installment continuing to explore audit functionality with Spring Data JPA – good stuff.
I’m actually gearing up for a similar audit implementation now and will be using these articles as a reference point.
>> A Map of Akka [codecentric]
An intro to what Akka brings to the table.
>> Testing your Liquibase Migrations in Continuous Integration [codecentric]
Testing these kinds of flows in your system – such as DB evolution and migration – is quite important if you’re not actively looking for trouble.
>> Build High Performance JVM Microservices with Ratpack & Spring Boot [infoq]
A very interesting match between Ratpack and Boot, to address some of the common problems when building microservices.
>> Spring Boot @ConfigurationProperties [java-allandsundry]
Cleanly working with properties is a sign of project maturity. One of many, sure, and maybe a pet peeve of mine, but certainly useful in practice.
This is how Spring Boot makes all of that easier.
Also worth reading:
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>> Java 8’s Method References Put Further Restrictions on Overloading [jooq]
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>> Is using Unsafe really about speed or functionality? [vanillajava]
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>> Server-sent events with RxJava and SseEmitter [nurkiewicz]
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>> Java Numeric Formatting: DecimalFormat [marxsoftware]
Webinars and presentations:
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>> Priming Java for Speed at Market Open [infoq]
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>> Java EE 7 Using Eclipse [infoq]
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>> Let’s Get to the Rapids: Java 8 Stream Performance [infoq]
Time to upgrade:
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>> Spring Data Fowler SR2 released
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>> Hibernate Validator 5.2.1.Final*
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>> Elasticsearch 1.7.1 and 1.6.2 released
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>> Spring XD 1.2.1 Released, >> Spring Security Kerberos 1.0.1 Released, >> Spring Cloud Connectors 1.2.0 released
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>> Guava Release 19.0: Release Notes
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>> IntelliJ IDEA 15 EAP Comes with True HiDPI Support for Windows and Linux
2. Technical
>> Bypassing Google Authentication on Periscope’s Administration Panel [fin1te] and
>> Messenger.com Site-Wide CSRF [fin1te]
Two great pieces of security reading.
I really enjoy reading these detailed analysis of security issues – makes me triple check everything in my own implementations.
>> Stream processing, Event sourcing, Reactive, CEP… and making sense of it all [confluent]
A good introduction to Event Sourcing with the goal of “finding the wisdom behind the buzzwords“. Solid read.
Also worth reading:
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>> 1,000,000 Websites [jacquesmattheij] and Evercookies in the wild, Kia, Mazda, German & Polish Newspapers, Piracy Honeypots and more [jacquesmattheij]
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>> Distributed Data Stores for Mere Mortals [medium]
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>> Node, Express, ReactJS, AWS – a case study in architecture [dandreamsofcoding]
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>> Amazon S3 Update – Notification Enhancements & Bucket Metrics [amazon]
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>> AWS Security: 5 things you need to check right now [cloudacademy]
3. Musings
>> Why Guessing is not Estimating and Estimating is not Guessing [herdingcats]
A quick writeup about the spectrum between pure guessing and careful estimation.
>> Doing Terrible Things To Your Code [codinghorror]
Starting out? Read it. In your third decade of building software? Read it.
Also worth reading:
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>> Government Abandonware [bozho]
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>> Thoughts On Comments [codefx]
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>> Who Accept’s Your Team’s Academy Awards? [daedtech]
4. Comics
And my favorite Dilberts of the week:
>> Crumb-Snatcher? No! Niche Player
>> Anything I don’t understand is easy to do
>> Your script was almost perfect, keep up the good work buddy
5. Pick of the Week
Earlier this year I 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.
If not – you can share the review and unlock it right here:
[sociallocker id=”6211″]
>> Your API versioning is wrong, which is why I decided to do it 3 different wrong ways
[/sociallocker]
