Throw Exception Authenticate

[Spawnrad]

Describe the bug
For authenticate exception is not throw

Code to Reproduce
Client.php line 475
The troubling code section which produces the reported bug.

        try {
            $this->connection->connect($this->host, $this->port);
        } catch (ErrorException|RuntimeException $e) {
            throw new ConnectionFailedException("connection setup failed", 0, $e);
        }
        $this->authenticate();

        return $this;

Expected behavior
throw authenticate exception

Webklex version: 6.2