| Feature | Hutool 5.x (Legacy) | Hutool 26 (Modern) | | :--- | :--- | :--- | | Minimum JDK | JDK 8 | JDK 11 | | Servlet API | javax.servlet | jakarta.servlet | | DateUtil.offset() returns | Date | Date (unchanged but deprecated) | | JSONObject | Based on HashMap | Based on LinkedHashMap (insertion order preserved) | | ZipUtil.unzip() | Throws IOException | Throws IORuntimeException (unchecked) | | CollUtil.join() | Uses StringBuilder internally | Uses StringJoiner (JDK 8+) |
This paper examines Hutool 2.6’s feature set, design decisions, and performance considerations, providing insights for developers and historians of Java software development. hutool 26
: Refinements to database connection pooling and SQL execution utilities. hutool-cache | Feature | Hutool 5
Synchronous GET/POST requests without third-party libraries like HttpClient or OkHttp. // New way in Hutool 26 LocalDateTime ldt
// New way in Hutool 26 LocalDateTime ldt = LocalDateTimeUtil.parse("2026-05-02", "yyyy-MM-dd"); LocalDateTime beginOfDay = LocalDateTimeUtil.beginOfDay(ldt); Duration duration = LocalDateTimeUtil.between(ldt, LocalDateTime.now());