Java 25: The 'No-Boilerplate' Era Begins
2 days ago
- #Java
- #JDK25
- #Programming
- JDK 25 is a Long-Term Support (LTS) release, making it the standard for production environments for the next 4 years.
- Module Import Declarations are finalized, reducing boilerplate by importing commonly used packages via module imports.
- Compact Source Files & Instance Main Methods allow simpler Java programs without verbose class declarations and static main methods.
- Flexible Constructor Bodies enable logic execution before super() calls, improving constructor flexibility.
- Scoped Values replace ThreadLocal, offering immutable, bounded-lifetime data sharing across threads.
- Compact Object Headers reduce memory footprint by compressing object metadata from 12-16 bytes to 8 bytes.
- Stable Values API introduces lazy initialization fields treated as constants by the JVM for better performance.
- AOT Enhancements & Profiling improve startup times and optimization with simplified commands and method profiles.
- Generational Shenandoah GC and removal of 32-bit x86 port are other notable features in JDK 25.