Smithy Java client framework is now generally available

This article announces the general availability of Smithy Java client code generation, enabling developers to build type-safe Java clients directly from Smithy models without manual serialization or protocol handling.

• Automatically generates serialization, protocol handling, and request/response lifecycle code
• Supports multiple protocols: HTTP, AWS JSON, restJson1, restXml, Query, and Smithy RPCv2 CBOR
• Includes dynamic client for runtime model loading without code generation
• Generates type-safe Java classes from Smithy shapes independent of services
• Built on Java 21 virtual threads for straightforward blocking-style interface
• Enables protocol swapping at runtime without rebuilding clients
• Public APIs now stable with backwards compatibility commitment

Smithy Java provides a model-driven approach to service development, eliminating boilerplate code and keeping clients synchronized with API evolution.