Java Weekly, Issue 383
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
>> The Anatomy of ct.sym — How javac Ensures Backwards Compatibility [morling.dev]
In pursuit of backward compatibility – how the release flag and ct.sym file helps us to ensure backward compatibility more effectively. Interesting stuff
>> Greetings, Micronaut Hipster! [github.com]
Say hello to a Micronaut-based JHispter application – using Micronaut instead of Spring Boot with JHispter
>> Faster warmup, smaller downloads, JDK 16 — GraalVM 21.1 is here! [medium.com]
Supporting Java 16, removing unnecessary barriers, performance improvements, and small other features in a new GraalVM version
Also worth reading:
- >> Security and Sandboxing Post SecurityManager [inside.java]
- >> Clean Unit Tests with Mockito [reflectoring.io]
- >> OSGi Working Group Settles into New Home at Eclipse Foundation [infoq.com]
- >> Creating Deep Stubs With Mockito to Chain Method Stubbing [rieckpil.de]
Webinars and presentations:
- >> A Bootiful Podcast: Reliably CEO Russ Miles [spring.io]
Time to upgrade:
- >> Spring Cloud Hoxton.SR11 has been released [spring.io]
2. Technical
>> Evolving Kubernetes networking with the Gateway API [kubernetes.io]
The Gateway API in K8S – routing, request manipulation, traffic management, and many more cool networking features
Also worth reading:
- >> Understanding Istio Telemetry v2 [blog.christianposta.com]
- >> An example of overengineering – keep it WET [blog.frankel.ch]
- >> C++ for Java Programmers – Losing the Fear [blog.scottlogic.com]
- >> You should choose GraphQL over REST and here’s why [blog.sourced-bvba.be]
- >> 3 genius visual data extraction attacks in Javascript [advancedweb.hu]
3. Musings
>> Is Bitcoin Really Throwing Energy Away? [diegobasch.com]
Bitcoin from a “first-prototype” perspective: it’s surely inefficient but on its path to becoming ENIAC of cryptocurrencies
Also worth reading:
- >> Mind the platform execution gap [martinfowler.com]
4. Comics
And my favorite Dilberts of the week:
>> Bookshelves On Zoom [dilbet.com]
>> Instead Of Handshakes [dilbet.com]
>> Workplace Injuries [dilbet.com]
5. Pick of the Week
>> Never say “no,” but rarely say “yes.” [asmartbear.com]
