FAQ: Why Backend Engineers Building Multi-Tenant Agentic Platforms in 2026 Must Stop Treating Java 26's Value Objects and Primitive Classes as Memory-Safe Defaults When Sharing Tenant State Across AI Agent Tool-Call Boundaries

Java 26 is officially here, and with it comes the long-awaited maturation of Project Valhalla's value classes and primitive classes. The JVM community is rightfully excited. Flattened memory layouts, reduced heap pressure, no accidental null references on primitive class instances, and dramatically improved cache locality are all genuine