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Primitive Pattern Matching

3 articles · Page 1 of 1
macrozheng
macrozheng
Sep 18, 2026 · Backend Development

JDK 27: Default G1 GC, Compact Object Headers & Post-Quantum TLS Explained

JDK 27 introduces three major default behavior changes—G1 as universal garbage collector, 64-bit compact object headers reducing heap usage by 25%, and post-quantum hybrid key exchange for TLS 1.3—plus preview features like structured concurrency, lazy constants, primitive pattern matching, and Vector API for AI workloads.

Compact Object HeadersG1 GCJDK 27
0 likes · 22 min read
JDK 27: Default G1 GC, Compact Object Headers & Post-Quantum TLS Explained
Su San Talks Tech
Su San Talks Tech
Sep 17, 2026 · Backend Development

JDK 27 Released: Three Default Changes Boost Performance & Security Without Code Changes

JDK 27 introduces nine JEPs including G1 as universal default GC, compact object headers reducing heap usage by 25%, and post-quantum TLS 1.3 hybrid key exchange enabled by default — all requiring zero code changes — plus preview features like lazy constants, primitive pattern matching, structured concurrency, and Vector API for AI workloads.

Compact Object HeadersG1 GCJDK 27
0 likes · 22 min read
JDK 27 Released: Three Default Changes Boost Performance & Security Without Code Changes
Su San Talks Tech
Su San Talks Tech
Sep 16, 2025 · Fundamentals

What Makes Java 25 a Game‑Changer? Explore Its Groundbreaking Features

Java 25, the latest LTS release, introduces a suite of powerful new language and runtime features—including Scoped Values, compact source files, flexible constructors, module import declarations, a key‑derivation API, compact object headers, generational Shenandoah GC, structured concurrency, primitive pattern matching, and Stable Values—while also deprecating 32‑bit x86 support and enhancing JFR and the Vector API, offering developers both modern ergonomics and performance gains.

Compact Object HeaderJava 25Key Derivation Function
0 likes · 21 min read
What Makes Java 25 a Game‑Changer? Explore Its Groundbreaking Features