Java 25 Migration & Project Loom: The Technical Debt “Gold Mine” for B2B Contractors in Poland’s Banking Sector

“Visual comparison of legacy Java 8 and Java 11 banking systems versus Java 25 architecture in 2026, highlighting Project Loom virtual threads, ZGC low-latency garbage collection, and sub-5ms execution targets in Warsaw Tier-1 bank cores.”

In 2026, Poland’s banking sector is facing a paradox. Warsaw hosts some of Europe’s most advanced AI-ready infrastructure, sovereign cloud regions, and GPU-dense data centers. Yet deep inside many Tier-1 banks, the core transaction engines still run on legacy Java architectures designed for a pre-agentic era. This gap—between modern infrastructure and outdated execution models—is no … Read more