Yes, we're now running our Black Friday Sale. All Access and Pro are 33% off until 2nd December, 2025:
Java Weekly, Issue 299
Last updated: August 10, 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:
Handling concurrency in an application can be a tricky process with many potential pitfalls. A solid grasp of the fundamentals will go a long way to help minimize these issues.
Get started with understanding multi-threaded applications with our Java Concurrency 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.
Yes, we're now running our Black Friday Sale. All Access and Pro are 33% off until 2nd December, 2025:
Here we go…
1. Spring and Java
>> Definitive Guide to Java 13 [blog.codefx.org]
Java 13 was released this week — see what’s new or changed in the language itself, plus a few API improvements and new JVM features.
>> How to map Oracle JSON columns using JPA and Hibernate [vladmihalcea.com]
A nice addition in release 2.7.0 of the hibernate-types project.
>> Bean Validation Anti-Patterns [reflectoring.io]
And whether you’re new to the Bean Validation standard or a seasoned veteran, you’ll surely find at least a couple of takeaways here.
Also worth reading:
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>> #HOWTO: Bootstrap your first Jakarta EE 8 application [rieckpil.de]
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>> A Technical Comparison of Popular API Gateways with Apigee Edge, Spring Cloud Gateway, and Ocelot [content.pivotal.io]
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>> Exercises in MapReduce Style [blog.frankel.ch]
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>> Using Java to Orchestrate Robot Swarms [infoq.com]
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>> Eclipse Proposes Vulnerability Assessment Tool [infoq.com]
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>> Goodbye http://repo.spring (use https) [spring.io]
Webinars and presentations:
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>> A Bootiful Podcast: Spring Framework co-founder and lead Juergen Hoeller on Spring Framework 5.2 and more [spring.io]
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>> Are We Really Cloud-Native? [infoq.com]
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>> Easy Data Transform video [successfulsoftware.net]
Time to upgrade:
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>> Spring Boot for Apache Geode & Pivotal GemFire 1.1.1.RELEASE & 1.2.0.M2 Available! [spring.io]
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>> Spring Cloud Greenwich.SR3 Released [spring.io]
2. Technical and Musing
>> Thoughts on efficient enterprise testing (1/6) [blog.sebastian-daschner.com] and >> Efficient enterprise testing — unit & use case tests (2/6) [blog.sebastian-daschner.com]
An exciting new series examines best practices for improving the efficiency of enterprise testing, for a variety of test scopes and approaches.
>> Human Needs vs. Bad Code [blog.code-cop.org]
And a good write-up proposing that certain kinds of code quality misses could be the result of a developer’s motivation to meet their basic needs rather than laziness or lack of skill.
Also worth reading:
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>> AWS CDK Part 1: How to create a custom VPC [blog.codecentric.de]
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>> Recruiting Software Developers – Checking Out a Company [henrikwarne.com]
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>> Don’t Let Anyone Tell You that You’re Not a ‘Real’ Programmer [daedtech.com]
3. Comics
>> The Consultant [dilbert.com]
>> Read the Manual [dilbert.com]
>> Reporting Hierarchy [dilbert.com]
4. Pick of the Week
One week left to vote in the annual “State of Java” Survey.
As always, I’m keeping the survey quick and focused – it takes literally under 1 minute to fill in.
If you haven’t done that, definitely have a look:
>> The 2019 “State of Java” 1-minute Survey
Of course, I’ll share the full results after closing the survey. Thanks.
One more to 300. Maybe I’ll sneak a “This is Sparta!” in there 🙂
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Java Weekly, Issue 298
