docs: public List<PaymentProtocol.Output> getOutputs() {
          List<PaymentProtocol.Output> outputs = new ArrayList<>(paymentDetails.getOutputsCount());
          for (Protos.Output output : paymentDetails.getOutputsList()) {
              Coin amount = output.hasAmount() ? Coin.valueOf(output.getAmount()) : null;
              outputs.add(new PaymentProtocol.Output(amount, output.getScript().toByteArray()));
          }
          return outputs;
      }