Java Resources

Introduction to Data-Driven Testing With JUnit 5: A Guide to Efficient and Scalable Testing

Use JUnit 5’s @ParameterizedTest with @EnumSource and @MethodSource to run tests with multiple data inputs, improve test coverage, and efficiency for robust applications.

August 7, 2025

by Otavio Santana

CORE

· 3,247 Views · 6 Likes

How to Configure a Jenkins Job for a Maven Project

Learn how to configure a Jenkins job for a Maven project to automate builds, tests, and deployments with ease and efficiency.

August 7, 2025

by Faisal Khatri

CORE

· 3,010 Views · 4 Likes

jBPM as AI Orchestration Platform

Zero "agentic AI". Zero "cloud native". Zero other hype. Just an approach to achieving an efficient AI-centric automation using 100% free open-source components.

August 6, 2025

by Sergey Lukyanchikov

· 1,949 Views · 3 Likes

How to Build an MCP Server With Java SDK

Develop an MCP Server from scratch using only the Java SDK, test it with the MCP Inspector and use it in conjunction with Claude Desktop.

August 4, 2025

by Horatiu Dan

CORE

· 4,644 Views · 12 Likes

Immutable Objects Using Record in Java

Java 16 records simplify immutable class creation by automatically generating constructors, getters, and methods, reducing boilerplate code significantly.

July 30, 2025

by Davide Lorenzo Marino

· 6,588 Views · 2 Likes

Smart-Doc: Generating gRPC API Documentation in Java Projects

In Java microservices, gRPC simplifies communication, but API documentation is challenging. Smart-doc efficiently handles gRPC API documentation.

July 25, 2025

by sun yu

· 3,137 Views

Undocumented Java 16 Feature: The End-of-File Comment

A Unicode escape (\u001a) in Java 16 acts like an end-of-file comment, silently cutting off compilation—an undocumented quirk with real implications.

July 23, 2025

by Pravin Jain

· 4,575 Views · 8 Likes

Lock-Free Programming: From Primitives to Working Structures

Locking is not the only way to deal with concurrency. Lock-free programming approaches are on the opposite side. Let's dive into them.

July 22, 2025

by Bartłomiej Żyliński

CORE

· 4,576 Views · 7 Likes

1-Line IO in Java

Java is often blamed for being overly verbose. While language syntax is important, core libraries mainly dictate the level of verbosity imposed on developers.

July 21, 2025

by Johannes Döbler

· 4,982 Views · 8 Likes

How Hackers Exploit Spring Core Vulnerability in 2025: Proactive Measures to Detect Emerging Cyber Threats

This tutorial explains how to develop an effective low-interaction honeypot emulating the Spring Cloud Gateway applications to trap hackers.

July 17, 2025

by Tanu Jain

· 4,848 Views · 3 Likes

Fraud Detection in Mobility Services With Apache Kafka and Flink

Mobility services like Uber and Grab use data streaming with Kafka and Flink for fraud detection by applying AI and machine learning in real-time.

July 17, 2025

by Kai Wähner

CORE

· 4,831 Views · 1 Like

How to Build a Real API Gateway With Spring Cloud Gateway and Eureka

Build a real-world API gateway using Spring Cloud Gateway and Eureka Server. Perfect for beginners looking to understand microservices architecture with working code.

July 15, 2025

by Vivek Rajyaguru

· 6,451 Views · 2 Likes

Memory Leak Due To Mutable Keys in Java Collections

Java Collections components (such as Map, List, Set) are used in our applications. When their keys are not properly handled, it will result in a memory leak.

July 15, 2025

by Ram Lakshmanan

CORE

· 3,400 Views · 3 Likes

When MySQL, PostgreSQL, and Oracle Argue: Doris JDBC Catalog Acts as the Peacemaker

What is this magical Doris JDBC Catalog? It's like a universal key in the data world, opening the doors to multiple databases with one key.

July 11, 2025

by Zen Hua

· 2,468 Views · 1 Like

Secret Recipe of the Template Method: Po Learns the Art of Structured Cooking

Po learns how fixed structure with flexible ingredients makes the perfect noodle soup and Java code through the Template Method pattern in both OOP and functional styles.

July 11, 2025

by Shaamik Mitraa

· 1,989 Views

Testing Java Applications With WireMock and Spring Boot

In this article, we will explore the use of WireMock for mocking external system behavior in unit integration tests for Spring Boot applications.

July 9, 2025

by Gunter Rotsaert

CORE

· 3,608 Views · 4 Likes

Modernizing Apache Spark Applications With GenAI: Migrating From Java to Scala

Compare Java and Scala for Spark data engineering, explore their trade-offs, and learn how GenAI tools like Amazon Q assist in code modernization.

July 4, 2025

by Srikanth Daggumalli

· 4,030 Views · 1 Like

A Keycloak Example: Building My First MCP Server Tools With Quarkus

Learn to build an MCP server for Keycloak. The article shows how to create a Model Context Protocol (MCP) server for Keycloak using Quarkus and Goose CLI.

July 1, 2025

by Shaaf Syed

· 3,261 Views · 5 Likes

Spring Cloud LoadBalancer vs Netflix Ribbon

In this article you will learn how Spring Cloud LoadBalancer differs from Netlix Ribbon, and why the first was replaced by the second.

July 1, 2025

by Mario Casari

· 4,861 Views · 9 Likes

Squid Game: The Clean Code Trials — A Java Developer's Survival Story

Learn about clean coding techniques to refactor rigid Java methods, embrace patterns like Strategy, avoid anti-patterns, and craft future-proof software.

July 1, 2025

by Shaamik Mitraa

· 5,532 Views · 6 Likes

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