private SSPMetadataCache buildSSPMetadataCache(Set<SystemStreamPartition> sspsToPrefetch) {
    return new SSPMetadataCache(systemAdmins, CACHE_TTL, clock, sspsToPrefetch);
  }
Given that the admin throws an exception when trying to get the metadata after a successful fetch, getMetadata
should propagate the exception.
samza-core/src/test/java/org/apache/samza/system/TestSSPMetadataCache.java