3.9 - Hutool

Hutool 3.9 introduced a fluid way to handle dates:

To appreciate Hutool 3.9, we must rewind to the Java landscape of late 2018 and early 2019. JDK 11 was the new kid on the block, but the vast majority of enterprise production systems were still running on JDK 8. Maven/Gradle were standard, but modularization was a headache, not a feature. Hutool 3.9

Choose 3.9 if you need a stable, enclosed library for a legacy JDK 7/8 monolith that will never be upgraded. Choose 5.x if you want HTTP client upgrades or the latest BeanUtil features. Hutool 3