mkristofik opened a new issue, #33839:
URL: https://github.com/apache/arrow/issues/33839
### Describe the bug, including details regarding any error messages,
version, and platform.
I'm using the Java flight-core version 10.0.1 and grpc-core version 1.50.2.
I'm having trouble attaching headers to a GET call to a server.
```java
Ticket ticket = new Ticket(/* ... */);
CallHeaders headers = new FlightCallHeaders();
headers.insert("foo", "bar");
CallOption opt = new HeaderCallOption(headers);
try (FlightStream stream = client.getStream(ticket, opt)) {
// ...
}
```
I have logs that show the headers added to `opt` are not making it to the
server. My best guess at why this happens is due to
https://github.com/apache/arrow/blob/master/java/flight/flight-core/src/main/java/org/apache/arrow/flight/FlightClient.java#L309.
`FlightClient` is ignoring the new stub returned by gRPC which has the
header-injection interceptor added, see
https://github.com/grpc/grpc-java/blob/master/stub/src/main/java/io/grpc/stub/MetadataUtils.java#L55.
Am I doing something wrong here?
### Component(s)
FlightRPC, Java
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