Help with Additional Properties

[DevinSchwehr]

I am working on a project and using Adyen for part of it. I am using their official java library that can be found at
https://github.com/Adyen/adyen-java-api-library
I am trying to create a mock server to test against using their official OpenAPI files, the one I am currently testing against can be found here:
https://raw.githubusercontent.com/Adyen/adyen-openapi/main/yaml/LegalEntityService-v3.yaml

The problem that I am running into is when using their library and trying to create an individual Legal Entity, I get an object that looks like this:
LegalEntityInfoRequiredType { capabilities: {} entityAssociations: [] individual: class Individual { birthData: null email: [email protected] identificationData: null name: class Name { firstName: Shelly infix: null lastName: Eller } nationality: null phone: null residentialAddress: class Address { city: null country: US postalCode: null stateOrProvince: null street: null street2: null } taxInformation: [] webData: null } organization: null reference: null soleProprietorship: null trust: null type: individual unincorporatedPartnership: null verificationPlan: null }

But when the request goes to the Prism mock server at /legalEntities, I get this error:
[HTTP SERVER] post /legalEntities ℹ info Request received 2025-04-29 10:27:27 [4:27:27 PM] › [VALIDATOR] ⚠ warning Request did not pass the validation rules 2025-04-29 10:27:27 [4:27:27 PM] › [VALIDATOR] ✖ error Request body must NOT have additional properties; found 'capabilities' 2025-04-29 10:27:27 [4:27:27 PM] › [NEGOTIATOR] ✔ success Found response 422. I'll try with it. 2025-04-29 10:27:27 [4:27:27 PM] › [NEGOTIATOR] ✔ success The response 422 has a schema. I'll keep going with this one 2025-04-29 10:27:27 [4:27:27 PM] › [NEGOTIATOR] ✔ success Responding with the requested status code 422 2025-04-29 10:27:27 [4:27:27 PM] › [NEGOTIATOR] ℹ info > Responding with "422" 2025-04-29 10:27:27 [4:27:27 PM] › [VALIDATOR] ✖ error Violation: request.body Request body must NOT have additional properties; found 'capabilities'

When I look at the yaml file, for LegalEntityInfoRequiredType I see that capabilities is a listed property. When I download the file and turn all additionalProperties to true, the test passes and works as expected. Is this an error with the openapi documentation or am I missing something?