Java Resources

Spring Boot WebSocket: Building a Multichannel Chat in Java

This is a step‑by‑step guide to a reactive Spring Boot WebSocket chat with WebFlux and MongoDB, including config, handlers, and manual tests.

September 19, 2025

by Bartłomiej Żyliński

CORE

· 3,387 Views · 4 Likes

How to Migrate from Java 8 to Java 17+ Using Amazon Q Developer

Learn how Amazon Q developer is speeding up application modernization and other benefits it offers to enterprises and developers

September 16, 2025

by Prabhakar Mishra

· 3,599 Views · 1 Like

Spring Cloud Gateway With Service Discovery Using HashiCorp Consul

This article introduces HashiCorp Consul, a service registry and discovery tool that integrates well with Spring Boot and supports reactive programming.

September 15, 2025

by Vishnu Viswambharan

· 4,565 Views · 4 Likes

Secure Your Spring Boot Apps Using Keycloak and OIDC

This blog explores integrating Spring Security with Keycloak using OpenID Connect. It also provides examples and unit tests.

September 9, 2025

by Gunter Rotsaert

CORE

· 3,271 Views · 4 Likes

Monitoring Java Microservices on EKS Using New Relic APM and Kubernetes Metrics

Monitor Java microservices on Amazon EKS using New Relic APM. Set up JVM agents, tune GC settings, and track Kubernetes metrics with dashboards and alerts.

September 2, 2025

by Praveen Chaitanya Jakku

· 3,400 Views · 2 Likes

Prototype for a Java Database Application With REST and Security

Prototype for a Java database application with REST and security using Spring Boot and containers for testing, using Keycloak for security and PostgreSQL for persistence.

September 2, 2025

by George Pod

· 4,095 Views · 5 Likes

Exploring QtJambi: A Java Wrapper for Qt GUI Development—Challenges and Insights

This article shares initial impressions, remarks, and observations on QtJambi, a Java wrapper for Qt library used for building graphical user interfaces.

September 1, 2025

by Gregory Ledenev

· 2,602 Views · 2 Likes

Java 21 Virtual Threads vs Cached and Fixed Threads

Discover how Java concurrency improved from Java 8’s enhancements to Java 21’s virtual threads, enabling lightweight, scalable, and efficient multithreading.

August 26, 2025

by Milan Karajovic

· 14,632 Views · 11 Likes

Filtering Java Stack Traces With MgntUtils Library

Long stack traces make debugging painful. MgntUtils offers a simple Java utility to filter irrelevant lines, letting you focus on what matters in your logs.

August 20, 2025

by Michael Gantman

· 3,406 Views · 4 Likes

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

· 3,424 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

· 4,231 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

· 2,464 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

· 3,210 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

· 2,965 Views · 4 Likes

jBPM as AI Orchestration Platform

This text presents jBPM as a platform for orchestrating external AI-centric environments, such as Python, used for designing and running AI solutions.

August 6, 2025

by Sergey Lukyanchikov

· 1,908 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

· 4,583 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

· 6,536 Views · 2 Likes