* Restore metadata parameter to client stubs.

* Restore Metadata default parameter in generated stubs.

Co-authored-by: James Ward <[email protected]>

Co-authored-by: James Ward <[email protected]>

Co-authored-by: James Ward <[email protected]>

* Defer writing headers until the first message stanza is sent

* Send headers even when no response messages are emitted

Co-authored-by: James Ward <[email protected]>

* Support StatusException in CoroutineContextServerInterceptor.

Previously, there was no way for a subclass of CoroutineContextServerInterceptor to close a call and prevent further processing. The interceptor would unconditionally invoke the next handler in the chain unless prevented by an exception. If the coroutineContext method threw an exception, it would bubble up to the thread pool and show up in the logs as an error.

This change adds a handler for StatusException in CoroutineContextServerInterceptor to catch a StatusException and close the call with no further action.

Fixes #221

* Rethrow the exception rather than returning an empty listener on StatusException

Co-authored-by: James Ward <[email protected]>

* bump wrapper

* and here we are

* run ci on all branches

* try to unflap tests

* just pr and master

* kotlin protos

* kt_jvm_proto_library proof of concept

* Document kt_jvm_proto_library

* Apply Bazel Kotlin proto rules to all examples

* kotlin protos

* add kotlin proto info

* version bumps and cleanup

Co-authored-by: Peter Schmitt <[email protected]>