private WebTarget createWebTarget() {
        final Client client = jerseyClientFactory.getNamedClient(JerseyClientName.OPEN_ID);
        return client.target(endpointUri);
    }
Allows you do define client credentials that differ from those in {@link OpenIdConfiguration}
stroom-security/stroom-security-common-impl/src/main/java/stroom/security/common/impl/OpenIdTokenRequestHelper.java