Logging shows wrong HTTP protocol

[FouquerYohann]

In feign.SynchronousMethodHandler#executeAndDecode

The request constructor default to HTTP protocol 1.1
then it's logged
And only afterward the client execute changes it to protocol version 2.0

note : I'm using Http2Client but that should still be true for other clients

[vitalijr2]

When the request was processed by the client, did the client update the protocol or is it the same?

It looks like an unrecoverable issue as the client shouldn't change the request object as it changes the protocol in its own conversation with a remote host.

[vitalijr2]

There are two problems:

• we cannot create a request with HTTP2 version[1],
• we cannot update the request version to HTTP2[2].

Even if a client (Apache or java11) wants to update the version after it raised it in a physical dialogue with a server - it cannot do so.

We can set a real version in a response, e. g.

feign/hc5/src/main/java/feign/hc5/ApacheHttp5Client.java

Line 207 in c435151

enumForName(Request.ProtocolVersion.class, httpResponse.getVersion().format()))