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NLNagesh Lakshmana Gowdanageshtech.hashnode.devMay 19 · 4 min read

Java 25 vs Java 21 — What’s New and Why Developers Should Care

Java continues to evolve rapidly, bringing better performance, developer productivity, cloud-native improvements, and modern language enhancements. While Java 21 became a major Long-Term Support (LTS)

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NLNagesh Lakshmana Gowdanageshtech.hashnode.devMay 11 · 5 min read

Java 8 vs Java 21: Massive Improvements Every Developer Should Know

Java has evolved dramatically since the release of Java 8 in 2014. For many years, Java 8 remained the industry standard because of its stability and long-term support. However, modern Java releases h

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SPSumit Prasadtechnotesbysumit.hashnode.devMar 17 · 4 min read

Upgrade from Java 11 to Java 17, 21, 25 (RHEL / Rocky / Alma / CentOS Stream)

Upgrading your system’s Java version is essential for security, performance, and compatibility with modern applications like Jenkins, Spring Boot, Elasticsearch, and other enterprise tools. This guide

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AKADITYA KUMARconcurrencysimplified.hashnode.devJul 16, 2025 · 13 min read

Java Threads Simplified: Choosing Between Traditional, Virtual, and ForkJoinPool in 2025

Java has evolved rapidly, and in 2025, developers now have more threading options than ever before — from traditional platform threads to modern virtual threads (introduced via Project Loom) and powerful tools like the ForkJoinPool. But with so many ...

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AIaraf injazatjavatech.hashnode.devJun 16, 2025 · 3 min read

Java Virtual Threads: The Future of Scalable Concurrency

🚀 Introduction In modern Java applications, scalability and responsiveness are no longer optional. Traditional thread-per-request models are hitting their limits under massive loads, especially in high-throughput microservice and reactive systems. E...

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CECarlos Expositofrodydev.hashnode.devMay 28, 2025 · 2 min read

🧵 Java 21: Di adiós al `+` con los nuevos String Templates

¿Harto de concatenar strings con mil formas distintas? ¿Has perdido la cuenta entre +, StringBuilder, printf, format, y MessageFormat?¡Buenas noticias! Con Java 21, llega una forma más limpia, segura y flexible: String Templates 🎉 😵‍💫 El problema...

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MDMirna De Jesus Camberocode-like-a-woman.hashnode.devMar 27, 2025 · 6 min read

Modern Java Features: Virtual Threads in Java 21

Let’s learn this new feature starting with a simple questionnaire that can offer answers to important questions that may come up as we dive into it. What is a Virtual Thread? Virtual threads are lightweight threads that are not tied to the OS or hard...

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NBNiaz Bin Sirajniazbinsiraj.hashnode.devFeb 16, 2025 · 3 min read

How I Made My Spring Boot DTOs Immutable Using Java Records and ModelMapper

The Journey from Mutable DTOs to Immutable Java Records As a Java developer, I'm always looking for ways to improve my code quality. Recently, while working on a Spring Boot REST API, I came across an intriguing blog post: DTOs must be immutable. Thi...

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MLMaheshwar Ligadeblog.techwasti.comDec 8, 2024 · 6 min read

Mastering Java Map Concepts: Tricky and Scenario-Based Interview Questions on HashMap, ConcurrentHashMap, SynchronizedMap, and TreeMap.

Introduction In Java interviews, questions about the Map interface and its implementations like HashMap, ConcurrentHashMap, SynchronizedMap, and TreeMap often test both theoretical knowledge and practical problem-solving skills. This guide provides a...

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MLMaheshwar Ligadeblog.techwasti.comDec 7, 2024 · 3 min read

Distributed Tracing with OpenTelemetry and Spring Boot 3!

As microservices become the backbone of modern applications, understanding and monitoring the flow of requests across distributed systems is crucial. Distributed tracing helps visualize this flow, diagnose bottlenecks, and debug issues effectively. O...

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#java21

Explore Hashnode

Trending tags this week

Java 25 vs Java 21 — What’s New and Why Developers Should Care

Java 8 vs Java 21: Massive Improvements Every Developer Should Know

Upgrade from Java 11 to Java 17, 21, 25 (RHEL / Rocky / Alma / CentOS Stream)

Java Threads Simplified: Choosing Between Traditional, Virtual, and ForkJoinPool in 2025

Java Virtual Threads: The Future of Scalable Concurrency

🧵 Java 21: Di adiós al `+` con los nuevos String Templates

Modern Java Features: Virtual Threads in Java 21

How I Made My Spring Boot DTOs Immutable Using Java Records and ModelMapper

Mastering Java Map Concepts: Tricky and Scenario-Based Interview Questions on HashMap, ConcurrentHashMap, SynchronizedMap, and TreeMap.

Distributed Tracing with OpenTelemetry and Spring Boot 3!