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Contingencies vs. Faults Introduction Since the invention of the Java language, there has been a long-standing debate about checked versus unchecked/runtime exceptions. Some people argue that checked exceptions promote a better design. Others feel that checked exceptions get in the way, especially as systems mature and refactor over time, and therefore unchecked exceptions are better. The Effective Java Exceptions article, settles this debate once and for all: both checked and unchecked excepti...

What’s New in JPA Buddy 3.0 JPA Buddy 3.0 is out! Support for Flyway script generation and Kotlin are finally here, along with other improvements and fixes. Let’s take a closer look at what it offers. by Join the DZone community and get the full member experience.Join For Free JPA Buddy 3.0 is out! Support for Flyway script generation and Kotlin are finally here, along with other improvements and fixes. Let’s take a closer look at what it offers. Flyway Flyway support was one of the most...

FeaturesJobsBlogPricingJamSign up← Back to blogEdit on Replit Thu Apr 29 2021 by Connor Brewster This post is part of a series about the wonderful world of clusters. Check out the first post for an overview of what clusters are all about. In this post we will take a peek under the hood of our hosting infrastructure and walk through how we made hosting work in a multi-cluster world. Hosting overview If you didnt already know, you can host web servers right on Replit.com. Just create a new re...

Java Microbenchmark Harness (JMH) A quick hands-on lesson to learn about Java Microbenchmark Harness (JMH). The article helps you get started and configure JMH project. by Introduction jvm. It is not enough to surround the code in a loop with System.out.println() and gather the time measurements. While benchmarking, a developer should consider warm-up cycles, JIT compilations, JVM optimizations, avoiding usual pitfalls, and even more. Thankfully, OpenJDK has a great tool Java Microbenchmark H...

In this tutorial, well cover the integration between Spring and docker. It is an excellent step to move your application to the cloud.

NoSQL, the Cloud, and Java (Part 3): The Standards by Join the DZone community and get the full member experience.Join For Free The number of NoSQL databases is growing. There are already more than two hundred solutions divided into several categories, and this number has been increasing over time beyond popularity. One solution would be to create a standard API to simplify the use of those databases. After all, the behaviors are basic operations, but after all, what is the reason for not impl...

A Look at Kotlins Delegation A look at the Delegation Pattern in Kotlin. by Join the DZone community and get the full member experience.Join For Free Kotlin offers many exciting features. In general, developers tend to cite null safety as their favorite. For me, its function extensions. But delegation comes a close second. The Delegation Pattern GoF book: Delegation is a way to make composition as powerful for reuse as inheritance [Lie86, JZ91]. In delegation, two objects are involved in hand...

Lombok and JPA: What Could Go Wrong? Mixing great things always results in something great – this law works almost everywhere, but not in cooking or coding. In this article, we will have a look at how Lombok can break your JPA project. by Join the DZone community and get the full member experience.Join For Free Lombok is a great tool that makes your Java code concise and clean. However, there are a few things to consider when using it with JPA. In this article, we’ll look at how the misuse...

A Simple AJAX Website in Java by Join the DZone community and get the full member experience.Join For Free During the Covid New Year of 2020, I created a simple prototype website using AJAX, with the goal of moving Java developers away from JavaScript and ideally also text-based HTML templates. The developer will however need to understand the structure of an HTML page as well as CSS selectors. I made my original solution a little more general, moved certain parts into the Ujorm framework, and...

Jmix 0.9: Pre-release Version Jmix 0.9 is the last pre-release branch that should be considered as almost stable. We also deliver the latest version of the companion development tool for the framework; Jmix Studio: 0.9.1-202. by Join the DZone community and get the full member experience.Join For Free In this release, we have frozen all major APIs: data model definition, data access layer, and security subsystem. They will probably remain the same in Jmix 1.0. Therefore, 0.9 can be considered ...