public static boolean isWellKnownAttribute(String attName) {
    return Arrays.binarySearch(dcValidAttributeNames, attName) >= 0;
  }
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