Reduces pause times by performing evacuation work concurrently. Hidden Classes
Sealed classes and interfaces restrict which other classes may extend or implement them. Provides better control over inheritance. Useful for domain modeling and pattern matching. Syntax: public sealed class Shape permits Circle, Square {} Text Blocks (Finalized) Multiline string literals are now standard. Eliminates the need for most escape sequences. Automatically manages indentation. Uses triple quotes: """ ... """ . EdDSA (Edwards-Curve Digital Signature Algorithm)
Allows Java programs to safely and efficiently access arbitrary memory outside of the Java heap. Found in jdk.incubator.foreign . 🧹 Deprecations and Removals Completely removed. RMI Activation: Deprecated for future removal. Solaris and SPARC Ports: Support officially removed. Biased Locking: Disabled by default and deprecated.
JDK 15 was released in September 2020 as a short-term feature release. It focused on finalizing major syntax enhancements and improving JVM performance. 🚀 Top Production Features
Both low-latency Garbage Collectors are now production-ready. Scalable, low-latency (sub-millisecond) GC.
💡 JDK 15 made Java more readable with Text Blocks and more efficient with the finalization of the ZGC and Shenandoah garbage collectors.
Reduces pause times by performing evacuation work concurrently. Hidden Classes
Sealed classes and interfaces restrict which other classes may extend or implement them. Provides better control over inheritance. Useful for domain modeling and pattern matching. Syntax: public sealed class Shape permits Circle, Square {} Text Blocks (Finalized) Multiline string literals are now standard. Eliminates the need for most escape sequences. Automatically manages indentation. Uses triple quotes: """ ... """ . EdDSA (Edwards-Curve Digital Signature Algorithm)
Allows Java programs to safely and efficiently access arbitrary memory outside of the Java heap. Found in jdk.incubator.foreign . 🧹 Deprecations and Removals Completely removed. RMI Activation: Deprecated for future removal. Solaris and SPARC Ports: Support officially removed. Biased Locking: Disabled by default and deprecated.
JDK 15 was released in September 2020 as a short-term feature release. It focused on finalizing major syntax enhancements and improving JVM performance. 🚀 Top Production Features
Both low-latency Garbage Collectors are now production-ready. Scalable, low-latency (sub-millisecond) GC.
💡 JDK 15 made Java more readable with Text Blocks and more efficient with the finalization of the ZGC and Shenandoah garbage collectors.