What Is SDKMAN? As Java developers, we have to work with different versions of Java from project to project. Installing different versions by hand and setting the PATH can become a real pain at times. SDKMAN is a command line tool that allows you to install different versions of Java, Gradle, Maven and more. SDKMAN also takes […]Continue reading
The Swagger Request Validator is a slick project supported by the folks at Atlassian. Using your API definition in Swagger v2 or OpenAPI v3, it allows you to programmatically validate your API matches your API specification. The Swagger Request Validator may be used standalone, or with Spring MVC, Spring MockMVC, Spring Web Client, REST Assured, […]Continue reading
Apache Maven is distributed in several formats. The simplest way to install Maven is to download a ready-made binary distribution archive and follow the installation instructions. Maven 3.3+ release requires JDK 1.7 or above to execute. General Requirements Java JDK must be installed on system. Java 1.7 or higher is needed for Maven. To verify the […]Continue reading
This past week I needed to upgrade my blog (Spring Framework Guru – aka SFG). This post is not going to be a technical how-to. But more of an overview targeted to new developers for them to see steps taken to migrate a production WordPress site to a new instance, with near zero downtime. Disclaimer […]Continue reading
In this post, I will explain the Merge Sort algorithm and how to use it in Java. Sorting is the process of arranging data in ascending or descending order. Sorting becomes necessary while searching a particular record in database, a particular telephone number in telephone directory, words in a dictionary, and so on. In computer […]Continue reading
So your JUnit 5 tests are not running under Maven? You have JUnit 5 Tests which run fine from your IDE, but fail to run under Maven? Your test output looks like this: [INFO] ——————————————————- [INFO] T E S T S [INFO] ——————————————————- [INFO] [INFO] Results: [INFO] [INFO] Tests run: 0, Failures: 0, Errors: 0, […]Continue reading
Spring Framework 5 introduces WebClient, a component in the new Web Reactive framework that helps build reactive and non-blocking web applications. In web applications, a common requirement is to make HTTP calls to other services. Prior to Spring 5, there was RestTemplate for client-side HTTP access. RestTemplate, which is part of the Spring MVC project, […]Continue reading
Working for startups is always an interesting experience. Currently, I’m a software engineer at Velo Payments. If you’ve ever worked for a startup, you’ll quickly see that you get to wear many hats. One of the hats I get to wear is the creation of developer center (currently in the oven). In the very near […]Continue reading
Consumer Driven Contracts are considered a design pattern for evolving services. Spring Cloud Contract can be used to implement consumer driven contracts for services developed using the Spring Framework. In this post, I’ll take an in-depth look at using Spring Cloud Contract to create Consumer Driven Contracts. An Overview of Spring Cloud Contract Let’s consider a […]Continue reading
It’s a fairly common task as a Java developer to convert from a List to an Array or from an Array to a list. In one of my previous post, I discussed about converting Map to List. Like many things in Java, there is often more than one way to accomplish a task. In this […]Continue reading
