Hutool 39 New

Cryptographic utilities were streamlined to eliminate complex Initialization Vector (IV) and KeySpec setups. One-line execution for AES and DES.

If you are using Maven, simply update your pom.xml :

// String utilities boolean isBlank = StrUtil.isBlank(" "); System.out.println(isBlank); // true hutool 39 new

The 3.9 series introduced a variety of enhancements across its core modules, focusing on making the library even more "all-encompassing" for Java developers. Maven Repository Module Utilities : New static methods were added to the

Which you rely on most (e.g., core , http , crypto , or json ) Maven Repository Module Utilities : New static methods

The release of introduces major enhancements tailored to the modern Java ecosystem. This iteration delivers streamlined data handling, vastly improved JSON serialization, performance-optimized utility classes, and fortified cryptographic utilities.

Whether managing massive legacy enterprise architectures or spinning up lightweight microservices, this comprehensive deep dive details everything new in Hutool 3.9 and demonstrates how to fully leverage its features. Core Module Enhancements: Making hutool-core Sweeter Core Module Enhancements: Making hutool-core Sweeter → 3

→ 3.9 is backward-compatible, smaller footprint, and fixes several edge-case bugs in date & file handling.

If you (maybe a typo for 5.x or a different lib), let me know and I’ll rewrite accordingly. Hutool’s latest stable is 5.8.x — so 3.9 is older but still widely used in legacy projects.

📌 Upgrade with Maven: