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Java 25

12 articles · Page 1 of 1
LuTiao Programming
LuTiao Programming
Sep 7, 2026 · Backend Development

Virtual Threads Eliminated Thread Pools — Until MySQL Connections Ran Out

After upgrading to Java 25 and Spring Boot 4, the author enabled virtual threads and removed custom thread pools for IO-heavy aggregation endpoints. While code simplified dramatically, the bottleneck shifted from thread exhaustion to HikariCP connection pool exhaustion, revealing that virtual threads don't increase downstream capacity. The solution: limit scarce resources (DB connections, HTTP clients) directly rather than limiting threads.

HikariCPIO-boundJava 25
0 likes · 12 min read
Virtual Threads Eliminated Thread Pools — Until MySQL Connections Ran Out
LuTiao Programming
LuTiao Programming
Mar 3, 2026 · Backend Development

From Java 21 to 25: Full Guide to Upgrading Spring Boot 3.5 → 4.0

This article explains why staying on old Java and Spring Boot versions is risky, introduces a dual‑axis model for the upgrade, details Java 21‑to‑25 language and JVM improvements, outlines Spring Boot 3.5‑to‑4.0 structural changes, and provides a step‑by‑step manual and OpenRewrite migration workflow with verification guidelines.

BackendJava 21Java 25
0 likes · 11 min read
From Java 21 to 25: Full Guide to Upgrading Spring Boot 3.5 → 4.0
java1234
java1234
Jan 23, 2026 · Fundamentals

Why Java 25 Is a Game‑Changer: Simpler Syntax, Faster Performance, Modern Features

Java 25, the newest LTS release, introduces a suite of language and runtime enhancements—including primitive‑type pattern matching, module‑wide imports, a lightweight main method, richer records, structured concurrency, scoped values, a vector API, and security updates—that together make Java code more concise, safer, and higher‑performing for both newcomers and seasoned developers.

JEPJavaJava 25
0 likes · 11 min read
Why Java 25 Is a Game‑Changer: Simpler Syntax, Faster Performance, Modern Features
JavaGuide
JavaGuide
Nov 21, 2025 · Backend Development

Spring Boot 4.0 Released: Core New Features and Upgrade Guide

Spring Boot 4.0, built on Spring Framework 7.0, introduces HTTP Service Clients, native API versioning, full JSpecify null‑safety, Java 25 support, upgraded dependencies, Gradle 9 compatibility, Redis static master‑replica configuration, and drops Undertow, with migration advice to move through 3.5 first.

API VersioningGradle 9HTTP Service Clients
0 likes · 8 min read
Spring Boot 4.0 Released: Core New Features and Upgrade Guide
Java Tech Enthusiast
Java Tech Enthusiast
Nov 8, 2025 · Fundamentals

What’s New in Java 25? 15 Game‑Changing Features You Must Know

Java 25, the latest LTS release, introduces a suite of language and runtime enhancements—including pattern matching, module imports, lightweight main methods, record upgrades, structured concurrency, scoped values, vector APIs, compact object headers, generational Shenandoah GC, AOT optimizations, JFR improvements, and security updates—making Java more concise, safer, faster, and easier for both newcomers and seasoned developers.

JEPJava 25Language Features
0 likes · 10 min read
What’s New in Java 25? 15 Game‑Changing Features You Must Know
Architecture Digest
Architecture Digest
Oct 29, 2025 · Fundamentals

What’s New in Java 25? 15 Game‑Changing Features You Must Know

Java 25, the latest long‑term support release, introduces a suite of enhancements—including pattern‑matching for primitive types, module import declarations, a compact main method, improved record classes, structured concurrency, scoped and stable values, vector API, compact object headers, Shenandoah GC, AOT optimizations, JFR upgrades, security updates, and the removal of 32‑bit x86—aimed at making Java more concise, safer, faster, and easier to observe.

JDKJavaJava 25
0 likes · 9 min read
What’s New in Java 25? 15 Game‑Changing Features You Must Know
Su San Talks Tech
Su San Talks Tech
Sep 16, 2025 · Fundamentals

What Makes Java 25 a Game‑Changer? Explore Its Groundbreaking Features

Java 25, the latest LTS release, introduces a suite of powerful new language and runtime features—including Scoped Values, compact source files, flexible constructors, module import declarations, a key‑derivation API, compact object headers, generational Shenandoah GC, structured concurrency, primitive pattern matching, and Stable Values—while also deprecating 32‑bit x86 support and enhancing JFR and the Vector API, offering developers both modern ergonomics and performance gains.

Compact Object HeaderJava 25Key Derivation Function
0 likes · 21 min read
What Makes Java 25 a Game‑Changer? Explore Its Groundbreaking Features
macrozheng
macrozheng
Aug 13, 2025 · Backend Development

What’s New in IntelliJ IDEA 2025.2? AI Coding, Java 25, Maven 4, and More

IntelliJ IDEA 2025.2 introduces major AI‑assisted coding upgrades, full Java 25 support, early Maven 4 compatibility, JSpecify nullability annotations, a Spring debugger, virtual‑thread debugging enhancements, and highlights a popular open‑source SpringBoot3 + Vue e‑commerce project for developers.

IntelliJ IDEAJava 25Maven 4
0 likes · 7 min read
What’s New in IntelliJ IDEA 2025.2? AI Coding, Java 25, Maven 4, and More
Cognitive Technology Team
Cognitive Technology Team
Jul 12, 2025 · Backend Development

Java 25 Unveiled: Key Language, API, and Performance Enhancements

Java 25, the upcoming LTS release slated for September 2025, introduces a suite of language and compiler upgrades such as pattern matching for primitive types, module import declarations, flexible constructor bodies, compact source files, plus new APIs like ScopedValue, Structured Concurrency, Vector, PEM handling, and numerous performance and platform improvements, all illustrated with practical code examples.

API EnhancementsJDKJava
0 likes · 19 min read
Java 25 Unveiled: Key Language, API, and Performance Enhancements