Java Resources

Java JEP 400 Explained: Why UTF-8 Became the Default Charset

JEP 400 standardizes UTF-8 as Java’s default charset from JDK 18 onward, ensuring consistent file encoding across platforms and fewer cross-OS bugs.

August 15, 2025

by Ramana Singaperumal

· 3,500 Views · 5 Likes

Scoped Values: Revolutionizing Java Context Management

ScopedValue in Java offers safe, immutable context propagation with clear scoping and minimal overhead—ideal for structured concurrency and virtual threads.

August 12, 2025

by Ammar Husain

CORE

· 4,310 Views · 5 Likes

Testing Approaches for Java Enterprise Applications With Jakarta NoSQL and Jakarta Data

Learn how testing strategies like mutation and data-driven testing improve reliability and quality in Jakarta EE apps, with practical tools and examples.

August 11, 2025

by Otavio Santana

CORE

· 2,521 Views · 7 Likes

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

· 3,274 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

· 3,035 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

· 1,969 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

· 4,669 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

· 6,604 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

· 3,160 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

· 4,592 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

· 4,596 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

· 5,000 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

· 4,868 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

· 4,845 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

· 6,501 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

· 3,416 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

· 2,496 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

· 2,007 Views