JcloudsLocation uses the code below rather than an accessKey and secretKey field, and rather than accessing `setup.get` directly. It would be good to follow that pattern, to make use of the methods in AbstractLocation like `getConfig`.

    public String getIdentity() {
        return getConfig(ACCESS_IDENTITY);
    }
    
    public String getCredential() {
        return getConfig(ACCESS_CREDENTIAL);
    }

Also, good to use the same config keys (`ACCESS_CREDENTIAL` and `ACCESS_IDENTITY` inherited from CloudLocationConfig, to make the switch from one cloud class to another as simple as possible for the user.