Groovy

Learn how to program a unit test using Spring's WebClient. WebClient, to quote its Java documentation, is the Spring Framework's: "Non-blocking, reactive client to perform HTTP requests, exposing a fluent, reactive API over underlying HTTP ... [More] client libraries such as Reactor Netty." In my current project, I have been using WebClient extensively in making service-to-service calls and have found it to be an awesome API — I love its use of fluent interface. [Less]

Here's more on building Java annotations for full Spring Boot REST APIs This post aims to demonstrate important Java @annotations used to build a functional Spring Boot REST API. The use of Java annotation gives developers the capability to reduce ... [More] the code verbosity by a simple annotation. As an example, we can refer to a transaction. By the standard pro-grammatically process with a transaction template, this requires a more complex config and boilerplate code to write, while this can be achieved with a simple@Transactional declarative annotation. [Less]

In the video below, we take a closer look at the Spring MVC execution flow diagram. Let's get started! Further Reading How Spring MVC Really Works

Learn more about Java records, and how easy it is to make the wrong decisions. There is an official JEP 359: Records (preview) that proposes to introduce "Records", i.e. pure data structures into Java. With it, Java continues to follow ... [More] other contemporary languages into the territory of "multi-paradigm" programming. This article explores what this change means for object-orientation, Java development, and our industry in general. [Less]

Learn more about using InstanceOf and Alternatives in Java While reviewing a customer code base, there was a situation where JSON data was mapped into a collection of POJOs (plain old Java objects) for processing. Part of the JSON payload included ... [More] a  List  — where Base is a custom Java parent class that was created to house all of the common attributes maintained by the elements, which could be part of the simple List. You may also like: The InstanceOf Code Smell and One Way to Get Around It To make things simple, let's assume a scenario where the following objects extend the Base object: [Less]

These new features and enhancements are totally groovy, man. In this post, we will learn about the enhancements of about Gradle 5.6. You may also like:  Groovy: A Retrospective 1. The Ex...

These new features and enhancements are totally groovy, man. In this post, we will learn about the enhancements of about Gradle 5.6. You may also like:  Groovy: A Retrospective 1. The Exit of Leaking Authentication Data It was found that ... [More] authentication data may leak while using the Gradle build tool to resolve dependencies against the custom authenticated repository. Officials are unaware of anyone having exploited the flaw, and thus, you should definitely upgrade the version since the features causing this issue are within the codebase and hard to disable. [Less]

Here are the five languages you MUST learn as a Java developer! As a programmer, you want to explore new things. Learning a new language gives you a different perspective when solving problems. So what are the five languages that a Java developer must explore?

What Is a Redis Cluster? Scalability and availability are two of the most important qualities of any enterprise-class database. It’s very unusual that you can exactly predict the maximum amount of resources your database will consume, so scalability ... [More] is a must in order to deal with periods of unexpectedly high demand. Yet, scalability is useless without availability, which ensures that users will always be able to access the information within the database when they need it. [Less]

Developers were using JHipster for designing mobile apps before 'hipster' was even, like, a thing For all those who know me, you know how much I love Java, Spring Boot, JHipster, and Ionic. JHipster is the best thing ever. It’s a popular, fully ... [More] open-source app generator and platform where you can quickly build Java apps with JavaScript front-ends. [Less]