Killing Latency: Why Global Agentic State Requires JEP 401 Value Classes and CvRDTs In 2026, if your autonomous agents are still waiting 200ms for a Raft consensus round-trip to synchronize state across the edge, you've already lost the UX war. High-frequency agentic workflows demand zero-coordination state replication, and Java’s Valhalla project finally gives us the memory density to do it at scale. Shameless plug: javalld.com has full LLD implementations with step-by-step execution traces — free to use while prepping. Why Most Developers Get This Wrong Treating CRDTs as Heavy Objects: Allocating thousands of G-Counter or LWW-Register wrapper objects per agent session kills the nursery and triggers GC pauses that negate the benefits of asynchronous replication. Over-reliance on Centralized Redis: Trying to force edge agents in Tokyo and London to sync through a "global" cache is a distributed systems anti-pattern that ignores the speed of light.…