@Override
  public void stop() {
    if (nodeRequests != null) {
      nodeRequests.shutdown();
      nodeRequests = null;
    }
    deleteRuntimeFiles();
  }
All future JSON-RPC calls will include the authentication token.
acceptance-tests/dsl/src/main/java/org/hyperledger/besu/tests/acceptance/dsl/node/BesuNode.java