Yes, we're now running our Black Friday Sale. All Access and Pro are 33% off until 2nd December, 2025:
Java Weekly, Issue 305
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:
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:
1. Spring and Java
>> Spring Cloud Stream – and Spring Integration. [spring.io]
Find out how to combine these two to implement function-based streams.
>> JVM numeric types – Integer types [blog.scottlogic.com]
Everything you always wanted to know about Integer types but were afraid to ask.
>> GraphQL server in Java: Part II: Understanding Resolvers [nurkiewicz.com]
And a good write-up on the GraphQLResolver interface — the key to lazy loading in GraphQL.
Also worth reading:
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>> Spring Transaction Management: An unconventional guide [marcobehler.com]
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>> Better NPE Messages in JDK 14 [marxsoftware.com]
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>> Comparing files and folders in IntelliJ IDEA [vojtechruzicka.com]
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>> Eclipse Project Licenses [waynebeaton.com]
Webinars and presentations:
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>> A Bootiful Podcast: Apache Tomcat, Netty and Spring Framework contributor Violeta Georgieva [spring.io]
Time to upgrade:
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>> Spring Tools 4.4.1 released [spring.io]
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>> Spring Cloud Hoxton.RC1 Released [spring.io]
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>> Spring Vault 2.2.0.RC1 and 2.1.4.RELEASE available [spring.io]
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>> Announcing Spring Cloud Stream Horsham.RC1 (3.0.0.RC1) [spring.io]
2. Technical and Musings
>> A beginner’s guide to database deadlock [vladmihalcea.com]
A look at deadlocks and how a few major database systems recover from them differently.
>> Encryption in the cloud [advancedweb.hu]
And while data encryption is important, we still have to control access to both the data itself and the encryption keys.
Also worth reading:
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>> A Guide to SQL Naming Conventions [blog.jooq.org]
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>> Open-sourcing Polynote: an IDE-inspired polyglot notebook [medium.com]
3. Comics
And my favorite Dilberts of the week:
>> Self Reliant [dilbert.com]
>> We Already Have a Carl [dilbert.com]
>> Best Employees [dilbert.com]
4. Pick of the Week
>> How to be Patient in an Impatient World [markmanson.net]
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