[SPARK-44337] Any fields set to Any.getDefaultInstance cause exceptions.

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.1
• Fix Version/s: 3.5.0
• Component/s: Protobuf
• Epic Link: Protobuf Support
• Assignee: Raghu Angadi
• Reporter: Raghu Angadi
• Created: 08/Jul/23 01:01
• Updated: 10/Jul/23 06:41
• Resolved: 10/Jul/23 06:41

Description

Protobuf functions added support for converting `Any` fields to json strings. 

It uses Protobuf's built in `JsonFormat` to covert to JSON.

JsonFormat fails to handled the fields when they are set to `Any.getDefaultInstance()` in the original message. This fails only while using descriptor set, but does not fail while using Java classes. Since using descriptor files is the common case, this can be blocker.