private void validate()

in uber-core-oauth-client-adapter/src/main/java/com/uber/sdk/core/auth/OAuth2Credentials.java [160:166]


        private void validate() {
            Preconditions.checkState(clientId != null
                    && !clientId.isEmpty()
                    && clientSecret != null
                    && !clientSecret.isEmpty(),
                    "Client ID and secret must be set.");
        }