add(FirErrors.SENSELESS_NULL_IN_WHEN) { firDiagnostic ->
        SenselessNullInWhenImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM) { firDiagnostic ->
        TypecheckerHasRunIntoRecursiveProblemImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }

- The API server now detects and fails on startup if there are conflicting issuers between JWT authenticators and service account configurations. Previously, such configurations would run but could be inconsistently effective depending on the credential. ([#123561](https://github.com/kubernetes/kubernetes/pull/123561), [@enj](https://github.com/enj))

    sink.close()
    return result
  }

  private fun cancelLater(
    call: Call,
    delay: Long,
  ): Thread {
    val thread =
      object : Thread("canceler") {
        override fun run() {
          try {
            sleep(delay)
          } catch (e: InterruptedException) {
            throw AssertionError()
          }
          call.cancel()
        }
      }