Java Weekly, Issue 396
Last updated: November 28, 2022
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:
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.
1. Spring and Java
>> Is Java 17 a Glass Half Full? [infoq.com]
Java’s 6-month cadence dilemma – should we be pessimistic about these, sometimes, modest releases, or is this yet another “glass half full” aspect of the release cycle?
>> Introduction to Panache [thorben-janssen.com]
Meet Panache – a Quarkus-specific library to implement the repository and active record patterns pretty easily in Java.
>> Implementing Retry with Resilience4j and Spring Boot [reflectoring.io]
How to retry failed operations in a variety of ways with the help of Resilience4j – short and yet practical!
Also worth reading:
- >> Crafting rolling releases for a Quarkus CLI application [andresalmiray.com]
- >> What the Heck Is the SpringExtension Used For? [rieckpil.de]
- >> Snyk JVM Ecosystem Report 2021 Finds Increased Usage of Java 11 in Production [infoq.com]
- >> Testing with Spring Boot and @SpringBootTest [reflectoring.io]
- >> Writing dynamic SQL queries using Spring Data JPA repositories and EntityManager [tech.asimio.net]
- >> Maven and IntelliJ IDEA [blog.jetbrains.com]
- >> Using Java 16 records with Thymeleaf [wimdeblauwe.com]
Webinars and presentations:
- >> JEP Café #2 – Sealed Classes [inside.java]
- >> A Bootiful Podcast: industry analyst, fascinating person, strategist, and storyteller Michael Coté [spring.io]
- >> Premiering Now: SpringOne Tour – July 2021: Do or Do Not, There is no try{} in Production [spring.io]
- >> How to crawl websites with Selenide and JDK 14+ [blog.sebastian-daschner.com]
Time to upgrade:
- >> Spring Boot 2.4.9 and 2.5.3 is now available [spring.io]
- >> Spring Boot 2.6.0-M1 is now available [spring.io]
- >> IntelliJ IDEA 2021.2 Is Out! [blog.jetbrains.com]
2. Technical & Musings
>> Apache Cassandra 4.0 is Here [cassandra.apache.org]
A major Cassandra release after six years: Java 11 support, virtual tables, auditing, full query logging, transient replication, and many more improvements.
Also worth reading:
- >> SQL Seek Method or Keyset Pagination [vladmihalcea.com]
- >> Data Movement in Netflix Studio via Data Mesh [netflixtechblog.com]
- >> Updating NGINX-Ingress to use the stable Ingress API [kubernetes.io]
- >> Extract Product Lines [martinfowler.com]
- >> UX Migration Strategy for Legacy Applications [blog.scottlogic.com]
- >> Your Work Email Address is Your Work’s Email Address [troyhunt.com]
3. Comics
And my favorite Dilberts of the week:
>> Ted’s Long Email [dilbert.com]
>> Wally Will Be In Charge [dilbert.com]
>> One On One Meetings [dilbert.com]
4. Pick of the Week
>> Modern-Day Architecture Design Patterns for Software Professionals [betterprogramming.pub]
