@Override
  public void setRefreshInterval(long refreshInterval) {
    throw new UnsupportedOperationException(
        "Not a real GemFireVM");
  }
This operation is not supported for this object. Will throw UnsupportedOperationException if
invoked.
geode-core/src/main/java/org/apache/geode/admin/internal/DistributedSystemHealthMonitor.java