Java Resources

Code samples of ModelMapper use cases such as adding custom mapping, saving custom mapping, and custom mapping with the builder pattern.

January 18, 2024

by Max Stepovyi

· 4,942 Views · 2 Likes

Java NIO: OutOfMemoryError

One of our applications was leveraging this NIO; however, it suffered from frequent ‘java.lang.OutOfMemoryError: Direct buffer memory’ when we were running in Java 11.

January 18, 2024

by Ram Lakshmanan

CORE

· 4,521 Views · 14 Likes

Update and Upgrade JBoss EAP With Ansible

Learn how to update and even upgrade your running instances of JBoss EAP in a fully automated fashion using Ansible and its collection dedicated to EAP!

January 17, 2024

by Romain Pelisse

· 5,280 Views · 2 Likes

Designing a Rest API Part 1: Naming Syntax

This article is the first in a series of some great takeaways on how to craft a well-designed and developer friendly REST API.

January 15, 2024

by Michael Krog

· 7,603 Views · 4 Likes

Building Your Own Automatic Garbage Collector: A Guide for Developers

Implementing a custom Java garbage collector requires deep JVM knowledge, exploration of OpenJDK, and understanding memory management principles.

January 14, 2024

by Arun Pandey

CORE

· 16,547 Views · 3 Likes

Efficiently Transforming JDBC Query Results to JSON

In this article, learn how to avoid common pitfalls when returning large amounts of data from a REST service.

January 13, 2024

by Greg Brown

· 4,822 Views · 2 Likes

Implementing Persistence With Clean Architecture

This Java tutorial shows and compares different possible persistence layer implementations according to the theoretical rules set by Clean Architecture.

January 12, 2024

by Daniel Buza

· 11,971 Views · 5 Likes

The Challenges and Pitfalls of Using Executors in Java

Executors come with their own set of challenges and pitfalls that developers must be aware of to avoid potential issues.

January 12, 2024

by Andrei Tuchin

CORE

· 10,932 Views · 5 Likes

Jakarta EE Security: Using Identity Stores

Jakarta EE Security (formerly JSR 375) introduces the notion of identity stores. Here, learn how they are implemented by Jakarta EE platforms like Payara.

January 11, 2024

by Nicolas Duminil

CORE

· 6,957 Views · 1 Like

Adding Versatility to Java Logging Aspect

Logging on a method or methods of a class becomes dynamically woven. This article deep dives and illustrates how a logging aspect may be boosted to make the most of it.

January 10, 2024

by Soham Sengupta

· 4,514 Views · 1 Like

Postgres Full-Text Search With Hibernate 6

In this article, explore the posjsonhelper library and learn about adding support for the full-text search for your project that uses Hibernate 6 and Postgres.

January 9, 2024

by Szymon Tarnowski

CORE

· 11,766 Views · 11 Likes

Mastering Thread-Local Variables in Java: Explanation and Issues

Explore Thread-Local variables in Java and their benefits, and provide practical examples to illustrate their usage and issues.

January 8, 2024

by Andrei Tuchin

CORE

· 12,697 Views · 9 Likes

JDK 22: Gatherer

This article will demonstrate, including examples, the implementation of how to use the new Gatheres, which are in preview for JDK 22.

January 8, 2024

by Karl Heinz Marbaise

· 8,931 Views · 4 Likes

Unleash Peak Performance in Java Applications: Overview of Profile-Guided Optimization (PGO)

Profile-Guided Optimization (PGO) is a powerful technique that can significantly boost the performance of your Java applications.

January 6, 2024

by Andrei Tuchin

CORE

· 11,415 Views · 5 Likes

JSON Handling With GSON in Java With OOP Essence

This guide will introduce you to GSON with practical examples and explore how OOP principles play a crucial role in the process.

January 4, 2024

by Reza Ganji

CORE

· 13,009 Views · 10 Likes

Unlocking the Power of Functional Programming: A Comprehensive Guide

In this article, the author will examine the fundamental ideas, advantages, and useful applications of functional programming.

January 4, 2024

by Aditya Bhuyan

· 3,917 Views · 3 Likes

Demystifying Java's Compare-and-Swap (CAS)

One of the key components empowering non-blocking approaches is the Compare-and-Swap (CAS) operation. In this article, the inner workings of Java's CAS mechanism.

January 3, 2024

by Andrei Tuchin

CORE

· 13,649 Views · 4 Likes