ContributionsMost RecentMost LikesSolutionsSwagger Codegen OneOf Generating Java client from an OpenAPI Spec "RequestWithInsuranceInfo": { "type": "object", "description": "This request schema will produce a response containing an out of pocket estimate for the given service using the patient's insurance information.", "additionalProperties": false, "properties": { "insuranceInfo": { "$ref": "#/components/schemas/InsuranceInfo" }, "service": { "type": "object", "additionalProperties": false, "description": "Schema to use when the patient's benefit info is not given in the request.", "properties": { "codes": { "type": "array", "items": { "$ref": "#/components/schemas/ServiceCode" } }, "provider": { "$ref": "#/components/schemas/Provider" }, "costs": { "$ref": "#/components/schemas/ServiceCosts" } }, "required": [ "codes", "provider", "costs" ] } } }, "InsuranceInfo": { "description": "Information about the payer, plan, and members.", "additionalProperties": false, "oneOf": [ { "type": "object", "additionalProperties": false, "title": "Option 1: Patient Is Policy Holder", "description": "Schema to use when the patient the primary on the insurance plan.", "properties": { "payer": { "$ref": "#/components/schemas/Payer" }, "policyHolderInfo": { "$ref": "#/components/schemas/PolicyHolderInfo" } }, "required": [ "payer", "policyHolderInfo" ] }, { "type": "object", "additionalProperties": false, "title": "Option 2: Patient Is Dependent", "description": "Schema to use when the patient is a dependent on the insurance plan.", "properties": { "payer": { "$ref": "#/components/schemas/Payer" }, "dependentMemberInfo": { "$ref": "#/components/schemas/DependentMemberInfo" }, "policyHolderInfo": { "$ref": "#/components/schemas/PolicyHolderInfo" } }, "required": [ "payer", "dependentMemberInfo", "policyHolderInfo" ] } ] }, What gets generated: public class InsuranceInfo implements OneOfInsuranceInfo { @Override public boolean equals(java.lang.Object o) {..} @Override public int hashCode() {..} @Override public String toString() {..} private String toIndentedString(java.lang.Object o) {..} } public interface OneOfInsuranceInfo { } public class RequestWithInsuranceInfo implements OneOfRequest { @SerializedName("insuranceInfo") private InsuranceInfo insuranceInfo = null; @SerializedName("service") private RequestWithInsuranceInfoService service = null; .. } As shown, the InsuranceInfo object implements the OneOfInsuranceInfo interface but has no values. Payer, PolicyHolderInfo and dependentMemberInfo class are generated but they are not linked to the InsuranceInfo class anyhow. How do I populate the InsuranceInfo class?