nestjs / nest / 5f72188a-8934-409b-93c0-70a3835402f3

90%

master: 90%

Pull #17394

circleci

fix(microservices): nullify grpcclient on close when tryshutdown fails

In the close() method, if graceful shutdown is enabled and
tryShutdown calls back with an error, the promise rejects and
this.grpcClient = null was skipped, leaving a dangling reference.

Wrapped the shutdown logic in try/finally to guarantee nullification
regardless of success or failure.

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