How do I download a PDF for my application where the request made to the API returns Content-Disposition attachment?

My application makes a connection to an API that returns a PDF. This PDF is returned as an attachment according to the following image and when I try to save this file to any folder through my application, or an error occurs or the file is saved in white.

WhatkindofimplementationcouldIusetosolvethisproblem?

BelowisanexampleofanimplementationthatItriedbutdidnotwork.

publicstaticStringgetPdf(IntegercodigoEmpresa,IntegernumeroCupomSap,IntegernumParcela){StringinfoPdfRetornado="";
    Client client = Client.create();
    WebResource webResource = client.resource(ConstantesIntegrationBankApi.teste);
    String auth = "tiroliro";
    ClientResponse response = webResource.header("Authorization", auth).type("application/pdf").get(ClientResponse.class);
    if (response.getStatus() == Response.Status.OK.getStatusCode())
    {
        ChunkedInputStream cis = response.getEntity(ChunkedInputStream.class);
        byte[] unchunkedData = null;
        byte[] buffer = new byte[1024];
        ByteArrayOutputStream bos = new ByteArrayOutputStream();

        int read = -1;
        try
        {
            while ((read = cis.read(buffer)) != -1)
            {
                bos.write(buffer, 0, read);
            }

            unchunkedData = bos.toByteArray();
            bos.close();
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
        salvarPdf(unchunkedData);
    }
    return infoPdfRetornado;