Josh Rosen created SPARK-5849:
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Summary: SubmitRestProtocolMessage should handle invalid requests
that parse as JSON strings
Key: SPARK-5849
URL: https://issues.apache.org/jira/browse/SPARK-5849
Project: Spark
Issue Type: Bug
Components: Spark Submit
Affects Versions: 1.30
Reporter: Josh Rosen
Assignee: Josh Rosen
Priority: Critical
SubmitRestProtocolMessage.parseAction casts the result of {{parse(json)}} to
{{JObject}}, but this cast can fail if invalid requests can still be parsed as
other JSON types, such as JSON strings. We should replace this unchecked cast
with pattern-matching in order to handle these types of invalid requests.
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