@Override
  public Collection<Exception> processExtraStateStorageFormatValidation(
      final BlockHeader blockHeader) {
    if (blockHeader != null) {
      final Hash parentStateRoot = getWorldStateRootHash();
      final BonsaiReferenceTestUpdateAccumulator originalUpdater =
          ((BonsaiReferenceTestUpdateAccumulator) updater()).createDetachedAccumulator();

      // validate trielog generation with persisted state
      validateStateRolling(parentStateRoot, originalUpdater, blockHeader, false);
      // validate trielog generation with frozen state
      validateStateRolling(parentStateRoot, originalUpdater, blockHeader, true);
    }
    return exceptionCollector;
  }
For reference tests world state root validation is handled in the harness, this stubs out the
behavior to always pass.

@param calculatedStateRoot state root calculated during bonsai persist step.
@param header supplied reference test block header.
ethereum/referencetests/src/main/java/org/hyperledger/besu/ethereum/referencetests/BonsaiReferenceTestWorldState.java