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This pull request introduces the A2UI Kotlin SDK, providing core logic for schema management, payload validation, and A2A protocol support. It also adds a Java sample for the Rizzcharts agent and updates the Python sample's workspace configuration. The review feedback identifies a critical build configuration error in the Java sample that disables logging, suggests using variables for dependency versions to improve maintainability, and recommends best practices for logging and performance, such as avoiding printStackTrace and sharing ObjectMapper instances.
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Directly ported from the Python sample.
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suyangw-g
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Apr 14, 2026
jonsharkey
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Apr 14, 2026
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Description
New Java version of the rizzcharts sample using the Kotlin version of the A2UI SDK.
Pre-launch Checklist