@Override
 public boolean equals(final Object obj) {
   if (this == obj) {
     return true;
   }
   if (obj == null) {
     return false;
   }
   if (getClass() != obj.getClass()) {
     return false;
   }
   final TieredSFCIndexStrategy other = (TieredSFCIndexStrategy) obj;
   if (!Arrays.equals(baseDefinitions, other.baseDefinitions)) {
     return false;
   }
   if (maxEstimatedDuplicateIds != other.maxEstimatedDuplicateIds) {
     return false;
   }
   if (maxEstimatedDuplicateIdsBigInteger == null) {
     if (other.maxEstimatedDuplicateIdsBigInteger != null) {
       return false;
     }
   } else if (!maxEstimatedDuplicateIdsBigInteger.equals(
       other.maxEstimatedDuplicateIdsBigInteger)) {
     return false;
   }
   if (orderedSfcIndexToTierId == null) {
     if (other.orderedSfcIndexToTierId != null) {
       return false;
     }
   } else if (!orderedSfcIndexToTierId.equals(other.orderedSfcIndexToTierId)) {
     return false;
   }
   if (!Arrays.equals(orderedSfcs, other.orderedSfcs)) {
     return false;
   }
   return true;
 }