Java 17 LTS: Essential Features and Improvements Guide
Major Features in Java 17 LTS
Enhanced Random Number Generation
Pseudo-Random Number Generators (PRNGs) are getting a major update in Java with the release of JEP 356. New interfaces and implementations make it easier to use different algorithms interchangeably and offer better support for stream-based programming. This is a great improvement for Java developers who require randomness in their applications.
Security Improvements
The JDK is constantly evolving and improving, and part of that process is ensuring that internal APIs are properly encapsulated. JEP 403 represents a step in that direction, by removing the –illegal-access flag. This will prevent JDK users from accessing internal APIs, except for critical ones like sun.misc.Unsafe.
Pattern Matching and Switch Expressions
- Enhanced switch syntax
- Pattern matching capabilities
- Migration examples
Project Panama Integration
Features developer by Project Panana enable easier access to C libraries from Java code. The Foreign Function and Memory API is eventually due to replace the JNI API.
Migration Guide
- Preparation steps
- Compatibility checks
- Best practices