Tools

Fix Java Security Issues While Coding in IntelliJ IDEA

Nowadays, developers are responsible for more than just creating the application. Besides working on features, developers have to focus on their applications’ maintainability, scalability, reliability, and security. Many developers are unsure of where to start with security. In addition, most companies still work with a dedicated security team instead of having security expertise inside the team.

A lot of developers practically live in their integrated development environment (IDE). A good IDE is like a swiss army knife: it is your go-to tool to do almost everything. Having everything I need to build, run, test, debug, and secure my application, makes a good IDE invaluable for many developers.

Hazelcast, from Embedded to Client-Server

Java developers are particularly spoiled when using Hazelcast. Because Hazelcast is developed in Java, it’s available as a JAR, and we can integrate it as a library in our application.

Just add it to the application’s classpath, start a node, and we’re good to go. However, I believe that once you start relying on Hazelcast as a critical infrastructure component, embedding limits your options. In this post, I’d like to dive a bit deeper into the subject.

New Java Welcome Page for VS Code

A common thing at first-time use is spending a couple of minutes browsing the Welcome Page and trying features from there.

Users’ satisfaction with the Welcome Page has a direct reflection on their satisfaction with the product and consequently affects their decision of adoption. Therefore, we believe it’s worth the effort to experiment with a refreshed Java Welcome Page.

Our new design focuses on three things: help users find the most important features, get started for the first project, and access references.

IntelliJ IDEA Changelists and Git Staging

Since the release of IntelliJ IDEA 2020.3, there are now two ways to manage your commits to Git.

The first one is with IntelliJ IDEA Changelists and the second is with Git staging.

This blog will take you through both approaches and highlight the differences.

Your own custom Spring Data repository

Functional Programming is becoming more and more popular. Spring provides a couple of DSLs for the Kotlin language. For example, the Beans DSL and the Routes DSL allow for a more functional approach toward Spring configuration. On the type side, Vavr (previously Javaslang) is pretty popular in Java, while Kotlin has Arrow.

In this post, I’d like to describe how one can use Arrow’s type system with Spring Data. Ultimately, you can benefit from the explanations to craft your custom Spring Data repository.

Creating a JavaFX World Clock from Scratch (Part 4)

Hello and welcome to Part 4 of a series of blog entries on how I created a “sci-fi” looking world clock using JavaFX. If you are new to this series you can visit Part 1, 2, & 3.

If you’ve been following me to this point take a moment to stand up, breath, take a bow and then pat yourself on the back. You are more than half way through the series.

In Part 4 I will be fast forwarding my progress of the JFX World Clock and jump right into how to build and create an installer that you can distribute. I will be using a new Java build tool called Bach by Christian Stein @sormuras. Later on, I will also show you my original build approach using the Maven build tool.

Java 16 and IntelliJ IDEA

If you are still working with Java 8, you might have mixed feelings about the news of the release of Java 16. However, you’ll see these numbers are going to increment at a much faster and predictable rate with Java’s six-month release cadence.

I’m personally excited about Java 16! It adds Records and Pattern Matching for instanceof as standard language features with Sealed classes continuing to be a preview feature (in the second preview).

Fun fact – Records was voted the most popular Java 16 language feature by 1158 developers in this Twitter poll, with Pattern Matching for instanceof second.

In this blog post, I will limit coverage of Java 16 to its language features, why you need them, and how you can start using them in IntelliJ IDEA. You can use this link for a comprehensive list of the new Java 16 features. Let’s get started.

Creating a JavaFX World Clock from Scratch (Part 3)

Do you ever get bored of the plain old UI Forms? Often, UI forms will have nice visual cues and validation icons as feedback when the user has typed something incorrectly.

In Part 3, I’ll be discussing the UI form section of the JavaFX World Clock that allows the user to add and modify timezone locations. While building Java apps using the new module system can be a bit of a challenge, here I will show you how I was able to successfully build a modern MVC based JavaFX UI!

Keeping Pace with Java Using Eclipse IDE

The Java language has been evolving at a fast pace with a six month release cadence and preview features.

With faster Java releases, it’s an exciting time to be a Java developer. Every new release of Java promises interesting features and updates.

To give them a spin, you have the tooling support in Eclipse Java IDE ready at your disposal.

Working with Multiple Carets in IntelliJ IDEA

Sometimes you need to modify multiple lines of code on separate lines inside IntelliJ IDEA with the same change.

The fastest way to achieve that is with multiple carets that are either stacked vertically in a list, placed at the end of each line or positioned exactly where you want them in your code.

Java Testing with VS Code

In our last post, we talked about starting a new Java project and running and debugging it with VS Code. In this post, we will cover testing.

To run Java tests on VS Code, we recommend using the Java Test Runner extension or the Java Extension Pack, which includes the extension. The extension supports the JUnit4, JUnit5, and TestNG frameworks.