Release 6.12.0 - New payments/setups feature

[david-ruiz-cko]

This release introduces a new Payment Setups API client to the codebase, enabling the creation, update, retrieval, and confirmation of payment setups. To support this, several new entity classes are added to represent customers, orders, industry-specific data, and payment methods. The main CheckoutApi interface and its implementation are updated to expose the new client.

Payment Setups API Integration:

Added PaymentSetupsClient interface and its implementation PaymentSetupsClientImpl with methods for creating, updating, retrieving, and confirming payment setups. [[1]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-aa004b7f1d0f04db00a0c71195182043cfbc8eb6f4de87f6a0149b4292456408R1-R47) [[2]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-56a151cb3882d62d89f56ad02f56f9389958fc96303a4d1e74d8c9fbbef98a06R1-R82)
Exposed the new client via the main API: updated CheckoutApi and CheckoutApiImpl to include and initialize paymentSetupsClient. [[1]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-9241579b48dfbc8729f69d42cd3fc2532b3ce2868663f46a307fc3b73638ef57R11) [[2]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-9241579b48dfbc8729f69d42cd3fc2532b3ce2868663f46a307fc3b73638ef57R68-R69) [[3]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-9e68f52b37d22f45b3135eb0837bed690d1e0be8740b6ced9b5a65c94dafd478R19-R20) [[4]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-9e68f52b37d22f45b3135eb0837bed690d1e0be8740b6ced9b5a65c94dafd478R72) [[5]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-9e68f52b37d22f45b3135eb0837bed690d1e0be8740b6ced9b5a65c94dafd478R99) [[6]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-9e68f52b37d22f45b3135eb0837bed690d1e0be8740b6ced9b5a65c94dafd478R195-R197)

Support for Payment Setups Entities:

Added new entity classes for customer information (Customer, CustomerEmail, CustomerDevice, MerchantAccount) to support payment setup requests. [[1]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-55c4129390d69653f362dc95b2e2a17eff24ac9b58272d60d18b5c695e2be94cR1-R45) [[2]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-6d605f669a0cfbcb0ff24deec7a3577fa21c2019a02e2aefd41e51cee53565b7R1-R26) [[3]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-e44780a0d33b99caa43c5cb5e9ec436606711795e512ad7c8fb3b6a52f2609aaR1-R21) [[4]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-15bf32e0cbb6f3979bc71a3e5420a91d32ff4a8882945327dcb2a76ea3d4dcb9R1-R66)
Introduced order-related entities (Order, OrderSubMerchant) for representing order details in payment setups. [[1]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-bb7020797061449f2fea57cadb97fa7984ea6dbe81e3e577fd962b13a40aefb1R1-R44) [[2]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-a965e20fdbe4298f7806e24c23d87da453f3defd45e622ba4ec8d163a7d52824R1-R42)
Added industry-specific entities (Industry, AirlineData) to allow for customization based on the type of transaction. [[1]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-7a4fc1b58af55c91718551b24e87d682d54579fab41fcd48bd3561e581178d69R1-R32) [[2]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-81771a6cf3767189640072c9d5409d55d5c403f23d56106fc6d55771b9496379R1-R36)

Payment Methods Configuration:

Introduced a flexible structure for payment methods, including the main PaymentMethods class and specific configurations for Bizum, Klarna, Stcpay, and Tabby, as well as common payment method base classes and options. [[1]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-cbc2681eed5eeac833e9ea171c33a79a91e0f9932da9a505ada26250ec63cc5dR1-R40) [[2]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-0d77b59851e24127f0545f2fb8a36b07f20f850b229ec5142e6d238523e9f789R1-R21) [[3]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-a7e4264cfe3cbe2d48e4842e4eb6a2334efd564c874976adcb7002aebed8a1d8R1-R31) [[4]](https://github.com/checkout/checkout-sdk-java/pull/524/files#diff-f8ccd697bc36ef69637bf2add1f1027683392f623efda5fa94faf8c2b8810cf3R1-R31)

These changes collectively enable the SDK to support advanced payment setup workflows, including customer and order details, industry-specific data, and a variety of payment method configurations.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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