@Override
  public void manageBlockAdded(
      final BlockHeader blockHeader,
      final List<Transaction> confirmedTransactions,
      final List<Transaction> reorgTransactions,
      final FeeMarket feeMarket) {}
This is a no-op implementation, that is used when the txpool is disabled
ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/transactions/DisabledPendingTransactions.java