@Override
  public boolean isAttributeModifiable(String name) {
    checkAttributeName(name);
    if (getModifiableAttributes().contains(name)) {
      return true;
    }

    if (getUnModifiableAttributes().contains(name)) {
      return false;
    }
    // otherwise, return the default
    return _modifiableDefault();
  }
First check if sslComponents are in the list of valid components. If so, check that no other
*-ssl-* properties other than cluster-ssl-* are set. This would mean one is mixing the "old"
with the "new"
geode-core/src/main/java/org/apache/geode/distributed/internal/AbstractDistributionConfig.java