try {
            Map<String, Object> sourceParams = new HashMap<String, Object>();
            sourceParams.put("type", "klarna");
            sourceParams.put("amount", 500);
            sourceParams.put("currency", "gbp");

            Map<String, Object> klarnaParams = new HashMap<String, Object>();
            klarnaParams.put("product","payment");
            klarnaParams.put("purchase_country","GB");

            sourceParams.put("klarna", klarnaParams);
            sourceCreate = Source.create(sourceParams);

        } catch (StripeException err) {
            System.out.println("Error :" + err.toString() + err.getCode());
            responseObject.setError(err.toString());
        } catch (Exception ex) {
            System.out.println("Error : " + ex.toString());
        }