in uber-core-oauth-client-adapter/src/main/java/com/uber/sdk/core/auth/CredentialsAuthenticator.java [98:104]
private boolean signedByOldToken(Response response, Credential credential) {
String value = ApiInterceptor.getAuthorizationHeader(response.request());
String accessToken = createBearerToken(credential);
return value != null && !value.equals(accessToken);
}