Completes both findings across all five clients — done locally on the Mac now
that homebrew openjdk@17 is available (JAVA_HOME=/opt/homebrew/opt/openjdk@17).
CLI-15: new MxEventStreamItem record + MxEventStream.nextItem() surfaces the
gateway's ReplayGap sentinel as a typed, non-terminal signal (isReplayGap()/
replayGap()/event()); existing Iterator<MxEvent> path unchanged, sentinel never
swallowed/synthesized. Javadoc covers gap semantics + resume contract.
CLI-04: typed single-item helpers on MxGatewaySession — Phase 1
adviseSupervisory/writeSecured/writeSecured2/authenticateUser/archestrAUserToId,
Phase 2 addBufferedItem/setBufferedUpdateInterval/suspend/activate (unregister
already present). Each routes through invokeCommand -> ensureProtocolSuccess +
ensureMxAccessSuccess (same validation as bulk). MXAccess parity preserved.
Credentials flow only into the request proto; exceptions carry only the reply and
gRPC status text is scrubbed via MxGatewaySecrets.redactCredentials — tests
assert the password/secured value is absent from getMessage()/toString()/CLI
output. New CLI subcommands write-secured/authenticate-user (credential via
--password/--password-env, prints only the user id).
gradle test: 106 tests, 0 failures (58 client + 48 cli); no generated churn.
Shared docs: ClientLibrariesDesign + CLAUDE.md updated to "all five clients".
Claude-Session: https://claude.ai/code/session_01DMXXvNuPekkkrTEyPNxEkW
Joseph Doherty
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