JVM Archives - Homann Software

Measured Java 27 shallow object sizes with compact headers enabled and disabled.

Java 27 Compact Object Headers: Measure the Savings Before You Resize Production

Compact headers are now the default in Java 27. Our tested example shows why smaller headers do not make every object smaller.

By Enrico Homann, 1 month ago September 21, 2026

Java 27 upgrade illustration showing modular servers, connected services and a security shield.

Java 27: What Production Teams Should Evaluate Now

Explore Java 27’s runtime defaults, post-quantum TLS and concurrency preview, with a practical upgrade checklist for Java and Spring teams.

By Enrico Homann, 2 months ago September 16, 2026