@Override
    @JsonProperty
    @JsonPropertyDescription("The issuer used in OpenId authentication." +
                             "Should only be set if not using a configuration endpoint.")
    public String getIssuer() {
        return issuer;
    }
@return The type of Open ID Connnect identity provider in use.
stroom-security/stroom-security-openid-api/src/main/java/stroom/security/openid/api/AbstractOpenIdConfig.java