Java Resources

Deploy Keycloak Single Sign-On With Ansible

Deploy, run, and manage your Keycloak single sign-on (SSO) with Ansible and its collection for Keycloak in a fully automated fashion!

December 11, 2023

by Romain Pelisse

· 5,815 Views · 1 Like

Real-Time Advertising With Apache Kafka and Flink

Real-time advertising platform built with Apache Kafka and Apache Flink showing case studies of Pinterest, Uber, Unity, Buzzwil, Reddit, etc.

December 8, 2023

by Kai Wähner

CORE

· 5,813 Views · 1 Like

Monitoring and Troubleshooting Java Applications in Docker Containers

This article is a study and practical guide for the performance analysis, tuning, and troubleshooting of Java services running within Docker containers.

December 8, 2023

by Ganesh Balakrishnan

· 8,491 Views · 2 Likes

The Pitfalls of Using Boolean Parameters in Methods: A Java Tutorial

Ditch boolean parameters for clearer, more maintainable code, reducing ambiguity in method calls and enhancing overall readability.

December 8, 2023

by Otavio Santana

CORE

· 8,666 Views · 1 Like

The Long Road to Java Virtual Threads

A historical journey of how Java finally solved the blocking problem. Java 21's Virtual Threads solve a primary issue faced by most Java developers.

December 7, 2023

by Ken Krueger

· 17,153 Views · 12 Likes

Problems With Finalizer

In Java, the finalize method has been part of the language since its early days, offering a mechanism to perform cleanup activities before an object is garbage collected.

December 7, 2023

by Eugene Kovko

· 5,129 Views · 1 Like

Preserving Context Across Threads

Managing context sharing across services in a large Microservices architecture is a challenging task. This article explains a standard way to do it using Java and Webflux.

December 5, 2023

by Bablu Lal

· 14,218 Views · 11 Likes

Demystifying Virtual Thread Performance: Unveiling the Truth Beyond the Buzz

Virtual threads can provide high enough performance and resource efficiency based on your concurrency goal but also let you have a simple development model.

December 5, 2023

by Daniel Oh

CORE

· 13,309 Views · 9 Likes

How To Get Cell Data From an Excel Spreadsheet Using APIs in Java

This article discusses the benefits OpenXML document formatting offers developers and suggests two API solutions for programmatically retrieving Excel data.

December 5, 2023

by Brian O'Neill

CORE

· 7,421 Views · 7 Likes

Automate JBoss Web Server Deployment With the Red Hat Certified Content Collection for JWS

In this article, learn how to fully automate the deployment and management of Red Hat JBoss Web Server on thousands of servers using Ansible!

December 4, 2023

by Romain Pelisse

· 6,300 Views · 3 Likes

Navigating NoSQL: A Pragmatic Approach for Java Developers

Eclipse JNoSQL 1.0.3 empowers Java devs with ArangoDB. Simplify NoSQL integration and persist data effortlessly. Explore hands-on code sessions!

December 4, 2023

by Otavio Santana

CORE

· 6,381 Views · 3 Likes

Java CMS GC Tuning

In this post, we will explore essential CMS JVM arguments, ranging from basic configurations like enabling CMS to advanced options such as compaction and trigger ratios.

December 4, 2023

by Ram Lakshmanan

CORE

· 4,200 Views · 1 Like

Taming the Virtual Threads: Embracing Concurrency With Pitfall Avoidance

Learn what challenges you probably face when you try to run your microservices on the virtual threads. The challenge might be more complex and bigger if you need to import more Java libraries.

December 3, 2023

by Daniel Oh

CORE

· 10,582 Views · 4 Likes

Java 11 to 21: A Visual Guide for Seamless Migration

Upgrade Java 11 to 21 for enhanced security, framework support, new features, and performance. Follow a step-by-step guide for a smooth transition.

December 1, 2023

by Otavio Santana

CORE

· 37,303 Views · 18 Likes

Quarkus 3: The Future of Java Microservices With Virtual Threads and Beyond

Learn how Quarkus integrates the virtual thread for Java developers to run blocking applications with a single @RunOnVirtualThread annotation.

December 1, 2023

by Daniel Oh

CORE

· 20,879 Views · 9 Likes

Making Spring AI and OpenAI GPT Useful With RAG on Your Own Documents

Discover how to use RAG to improve your document search experience with Spring AI and OpenAI GPT. Learn how to make your own documents more useful.

December 1, 2023

by Sven Loesekann

· 10,480 Views · 7 Likes

Virtual Threads: A Definite Advantage

Delve into how virtual threads can enhance your application’s performance and scalability, all while keeping thread management overhead very minimal.

November 30, 2023

by Unni Mana

· 4,318 Views · 1 Like

Troubleshooting "Uncaught RangeError: Maximum Call Stack Size Exceeded"

In this post, let’s discuss what triggered this problem, explore how different browsers respond to it, and how we went about solving it.

November 30, 2023

by Bhupathi Gattu

· 2,960 Views · 1 Like

Simplify Java: Reducing Unnecessary Layers and Interfaces [Video]

Simplify Java code by reducing unnecessary layers and interfaces. Unlock the power of simplicity to enhance maintainability without sacrificing functionality.

November 30, 2023

by Otavio Santana

CORE

· 6,060 Views · 3 Likes

A Modern Open-Source Technology That Conquers ACH Batch Processing

Using open-source technology is a good idea when dealing with Automated Clearing House (ACH) batch processing. Learn more!

November 28, 2023

by Malak Nallapu

· 3,750 Views · 3 Likes

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