Write effective tests for your application code utilizing the Spring RestTemplate by using the @RestClientTest annotation of Spring Boot

Object-oriented hierarchy may seem like a simple concept to grasp, since there are so many examples in life to illustrate it. This is not completely wrong. The basic idea behind object-oriented programming is simple. However…

<p>Hi, Spring fans! Can you believe it’s already November 17th, 2020!? We’re <em>weeks</em> away from Thanksgiving here in the US and then the end-of-year holidays. I, for one, can not believe it. You know what else is pretty wild? The first week of January…

Distributed System Design Fundamentals In this post, I describe distributed system design fundamentals a developer should learn.

Learn how to group loggers with Spring Boot 2.1

Level up your Java code and explore what Spring can do for you.

This tutorial explains enabling Distributed Tracing In Microservices by using Jaeger with Spring Boot for monitoring and troubleshooting.

Dependency injection is a common approach to implement loose coupling among the classes in an application. There are different ways of injecting dependencies and this article explains why constructor injection should be the preferred way.

Learn how to map Java Records to JSON columns with Oracle, SQL Server, PostgreSQL, MySQL, and the Hibernate Types project.

Preface In-Memory Data Grid is an in-memory distributed key-value store that enables caching data using distributed clusters. Do not confuse this solution with in-memory or nosql databases. In most cases it is used for performance reasons – all data is stored…

<p>On behalf of the community, I am pleased to announce that the Milestone 5 (M5) of the <a href="https://cloud.spring.io">Spring Cloud 2020</a> Release Train is available today. The release can be found in <a href="https://repo.spring.io/milestone/">Spring…

Learn CQRS Pattern with Spring Boot, one of the Microservice Design Patterns to independently scale read and write workloads of an application.

Rebranding Spring Boot Application RentersFeedback.com to RentersVoices.com

Learn how to wrap key parts of code with transactions.

A quick and focused tutorial on customizing the 403 Forbidden error response page in a Spring Security application.

Let's learn Spring WebFlux Streaming Response (aka Server Sent Events) for real time notifications to the browsers from the back-end application.

Learn Project Reactor limitRate to limit the rate of the incoming or outgoing messages through our reactive channel.

Learn Reactor Parallel Flux to process all the items in a reactive pipeline in parallel using Schedulers/Thread pools.

<p>Hi, Spring fans! In this episode <a href="http://twitter.com/starbuxman">Josh Long (@starbuxman)</a> talks to <a href="http://twitter.com/tastapod">Dan North (@tastapod)</a>, creator of BDD, optimizer of teams and all around legend. </p>
<iframe title="Programmer…

Profiles are a mighty tool for configuring Spring and Spring Boot applications. In this article, we discuss how Profiles work, for which use cases they are the right solution, and when we should rather not use them.

Log4J 2 introduces configuration support through JSON and YAML in addition to properties file and XML. If you are new to Log4J 2, I suggest reading my introductory post on Log4J 2, Introducing Log4J 2…