private RefreshingHttpsJwks getRefreshingHttpsJwks(final MockTime time, final HttpsJwks httpsJwks) {
        return new RefreshingHttpsJwks(time, httpsJwks, REFRESH_MS, RETRY_BACKOFF_MS, RETRY_BACKOFF_MAX_MS, mockExecutorService(time));
    }
Test that if we ask to load a missing key, and then we wait past the sleep time that it will
call refresh to load the key.
clients/src/test/java/org/apache/kafka/common/security/oauthbearer/internals/secured/RefreshingHttpsJwksTest.java