chenkaiyin created FLINK-21266:
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Summary: The POST request caused a JSON serialization error
Key: FLINK-21266
URL: https://issues.apache.org/jira/browse/FLINK-21266
Project: Flink
Issue Type: Bug
Components: Runtime / REST
Affects Versions: 1.11.3
Reporter: chenkaiyin
The annotation in the document can request the interface directly, but it will
return an error directly。
Post /jobs/:job/savepoints
Post /jobs/:job/stop
An error is reported when serializing "{}" in code：
MAPPER.readValue("{}", untypedResponseMessageHeaders.getRequestClass());
（AbstractHandle.java: 150）
The reason is no configuration @Nullable SavepointTriggerRequestBody.class file
cancelJob field
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