[hotfix][runtime] Reject raw bytes from PyFlink inputs - #1075
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wenjin272 merged 1 commit intoAug 31, 2026
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Validate PyFlink value type information before building the agent operator so only the supported pickled representation reaches Python deserialization. Add regression coverage for pickled, explicit, and malformed input types. Generated-by: OpenAI Codex 0.144.5 (GPT-5) Co-authored-by: Codex <codex@openai.com>
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Linked issue: N/A (hotfix)
Purpose of change
Python agent execution expects input values to use PyFlink's default pickle representation, but this contract was not enforced at the Java bridge. As a result, explicitly typed inputs could reach the bridge in an unsupported representation.
This change validates the PyFlink keyed-stream input type before constructing the agent operator. It accepts values described by
PickledByteArrayTypeInfoand rejects raw byte-array and other explicitly typed values with an actionable error. The Row-field validation is shared by the existing key check and the newvalue check.
Tests
mvn --batch-mode --no-transfer-progress -pl runtime -am testPrimitiveArrayTypeInfo, while default Python objects usePickledByteArrayTypeInfo.git diff --checkAPI
No public APIs are changed. Unsupported raw byte-array inputs now fail early with guidance to convert them through a Python operator using the default pickle output type.
Documentation
doc-neededdoc-not-neededdoc-includedWas this patch authored or co-authored using generative AI tooling?
Generated-by: OpenAI Codex 0.144.5 (GPT-5)