Agile Software Development
Yesterday, one of my colleagues (thanks Sahil!) shared a link introducing me to Bosque, a new programming language by Microsoft Research. After reading some of the information about this new language and looking at the code samples, I couldn’t help but seeing a large number of similarities with Kotlin. In this blog post, I’ll share …
Dealing with time is often hard. Managing time in Java however became a lot easier with the introduction of Joda Time, and later the port of Joda Time to Java 8. One of the effects this has is that as a result, we can do easy time manipulation using Duration methods. And now things can …
As can be seen in our previous blogpost, getting started with Javalin and Gradle is quite straightforward. In my experience it’s good to focus on integration testing early in the project. This allows you to refactor with confidence, get quick feedback, and prevent bugs. When using Javalin, this is no different. This blogpost will dive …
Continue reading "Integration Testing with Javalin and Fuel HTTP"
With the popularity of Spring Boot and the great support for integrating with different types of frameworks, it’s often hard to imagine using something different than Spring. However, there are numerous frameworks out there which provide similar features for building applications like Microservices, and Javalin is one of those frameworks. This post will help you …
Imagine you’re a developer and you have to do some unit testing. Not hard to image, I think. And imagine that as part of your tests, you need to have a bit of setup data. And your next test, well, it needs similar data, but just a slight variation of it and a pattern emerges. …
Continue reading "Easy testing with ObjectMothers and EasyRandom"
As part of some of the coding interviews I’ve been conducting recently, the topic of immutable data structures comes up regularly. I’m not overly dogmatic in it myself, but whenever there’s no need for mutable state, I try to get rid of code which makes code mutable, which is often most visible in data structures. …
Maintaining applications is often challenging, especially if you haven’t created them yourself. Tracing down the root of obscure errors, spending too much time in understanding the root cause of some error message, seeing a pretty clear error message, but having no clear way of resolving this. This is an often occurring issue for teams maintaining …
Java’s most popular testing library, JUnit, has released a new version. This version brings several welcome improvements since the last 5.3.2 release. In this blogpost I will go through the most important ones and give code examples where applicable. As you might know, JUnit 5.x (Jupiter) is a huge improvement over JUnit 4.x (Vintage). JUnit …
A common issue with Java 8 and Spring Boot was that formatting Java 8 dates in JSON wasn’t the most straightforward. This includes classes such as LocalDate, LocalDateTime and LocalTime. With the newer versions of Spring Boot however, this has been fixed and it seems that this is still unknown to a lot of developers. …
Continue reading "Formatting a Java 8 LocalDateTime in JSON with Spring Boot"
As a Java developer, one of the most heard complaints about working Java is the verbosity of the language. One of the main areas where this verbosity really shows up is in the area of data classes. Data classes, or tuples, or records, might one day end up in the Java language, but until that …