Java Resources

AWS CDK: Infrastructure as Abstract Data Types, Part 2

In part 2 of this journey into the CDK world, explore how to use basic building blocks like constructs by taking advantage of Quarkus features.

July 17, 2024

by Nicolas Duminil

CORE

· 7,527 Views · 4 Likes

Dynamic Watermarking With IMGProxy and Apache APISIX

In this post, we implement a watermarking feature with the help of imgproxy. The more I think about it, the more I think they make a match made in Heaven.

July 17, 2024

by Nicolas Fränkel

CORE

· 5,339 Views · 1 Like

How To Convert Common Documents to PNG Image Arrays in Java

Learn how to convert Office documents, PDFs, and 100+ images to an array of PNG images, and review some of the benefits of making PNG conversions over other formats.

July 17, 2024

by Brian O'Neill

CORE

· 5,563 Views · 3 Likes

Virtual Threads: A Game-Changer for Concurrency

In this blog, we'll explore Java Virtual Threads, compare them to traditional platform threads, and provide example code to highlight the differences.

July 16, 2024

by Gautham Krishnan

· 11,638 Views · 5 Likes

Faster Startup With Spring Boot 3.2 and CRaC, Part 1: Automatic Checkpoint

Learn about a 10-fold improvement in startup performance, i.e., a 90% reduction in startup time, when using automatic checkpoint/restore at startup.

July 15, 2024

by Magnus Larsson

· 10,653 Views · 5 Likes

How To Reduce Memory Consumption in Integration Tests With Kafka Using GraalVM

This article details the process of creating a native image for EmbeddedKafka with GraalVM, highlighting its benefits in integration tests.

July 12, 2024

by Anton Belyaev

· 5,770 Views · 1 Like

Dynamic Watermarking on the JVM

Displaying images makes for an interesting problem: on one side, you want to make them publicly available; on the other, you want to protect them against undue use.

July 10, 2024

by Nicolas Fränkel

CORE

· 4,254 Views · 1 Like

Maven Archetypes: Simplifying Project Template Creation

Maven Archetypes enables you to apply best practices within your project or org. Learn how to create archetypes from scratch and based on an existing project.

July 9, 2024

by Gunter Rotsaert

CORE

· 5,592 Views · 8 Likes

How To Remove Excel Worksheets Using APIs in Java

Learn how to simplify the process of retrieving worksheet details from an Excel XLSX file, and removing specific worksheets based on that information.

July 5, 2024

by Brian O'Neill

CORE

· 4,542 Views · 2 Likes

Javac and Java Katas, Part 2: Module Path

In this article, look at some exercises dedicated to using JDK tools such as javac, java, and jar to build and run modular Java applications.

July 3, 2024

by Maksim Kren

· 5,763 Views · 2 Likes

Integration Testing With Keycloak, Spring Security, Spring Boot, and Spock Framework

Configure Keycloak, integrate with Spring Boot, write repeatable unit tests using Spock, and ensure auth mechanisms work correctly through automated testing.

July 1, 2024

by Greg Lawson

· 7,136 Views · 3 Likes

Implementing Real-Time Credit Card Fraud Detection With Apache Flink on AWS

Real-time fraud detection systems are essential for identifying and preventing fraudulent transactions as they occur. Apache Flink is useful in this scenario.

July 1, 2024

by Harsh Daiya

CORE

· 7,198 Views · 4 Likes

Twenty Things Every Java Software Architect Should Know

Architects need a deep understanding of Java and its ecosystem, staying updated on the latest trends and best practices.

June 28, 2024

by Reza Ganji

CORE

· 18,343 Views · 28 Likes

Spring AI: How To Write GenAI Applications With Java

In this article, take a look at how to write GenAI applications with Java using the Spring AI framework and utilize RAG for improving answers.

June 28, 2024

by Jennifer Reif

CORE

· 9,089 Views · 5 Likes

Addressing Memory Issues and Optimizing Code for Efficiency: Glide Case

The approach to identifying and rectifying specific pain points, such as object churn and memory leaks, is commendable, specifically for mobile devices.

June 27, 2024

by Murat Gungor

CORE

· 4,004 Views · 2 Likes

How To Use Thread.sleep() in Selenium

Learn how to pause test execution with Thread.sleep() in Selenium. Control timing for effective automation testing.

June 25, 2024

by Faisal Khatri

CORE

· 5,497 Views · 2 Likes

Open-Source Dapr for Spring Boot Developers

Using Dapr with Spring Boot simplifies the development for Dapr-enabled apps: run, test, and debug locally without the need to run inside a K8s cluster.

June 24, 2024

by Thomas Vitale

· 8,436 Views · 4 Likes