Github user qianzhangxa commented on the pull request:
https://github.com/apache/mesos/commit/5b2261409e2b391d9182c5579e1df481c7f0779f#commitcomment-28615233
@shuizz `protobuf::internal::parse(google::protobuf::Message* message,
const JSON::Object& object)` is used to convert a JSON object to a protobuf
message, can you please show me your JSON which caused the error: `Not
expecting a JSON string for field 'value' `.
Actually, we already have a [unit
test](https://github.com/apache/mesos/blob/master/3rdparty/stout/tests/protobuf_tests.cpp#L803:L806)
to verify the case that the value of map is a protobuf message, and I see it
works well now.
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