in artifactregistry-auth-common/src/main/java/com/google/cloud/artifactregistry/auth/GcloudCredentials.java [81:87]
private static AccessToken validateAccessToken(AccessToken token) throws IOException {
Date expiry = token.getExpirationTime();
if (expiry.before(new Date())) {
throw new IOException("AccessToken is expired - maybe run `gcloud auth login`");
}
return token;
}