Integer default value is not mapped in the generated OpenAPI specification

[TharmiganK]

Description:

$Subject

Identified while testing this issue: #6948

Steps to reproduce:

Try to generate the OpenAPI specification for the following service contract type:

import ballerina/http;

public type Genre record {|
    string name;
    string description;
|};

public type Album record {|
    int iid = -1;
    string title;
    string author;
    Genre genre = {
        name: "Unknown",
        description: "Unknown"
    };
|};

type AlbumService service object {
    *http:ServiceContract;

    resource function get albums/[string id]() returns Album;
};

$ bal openapi -i service.bal

This gives a warning saying that the default value for Album.iid is not mapped in the generated OpenAPI specification

Affected Versions:

Ballerina SwanLake Update 10(2201.10.x)

[github-actions]

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      - Reason/EngineeringMistake - The issue occurred due to a mistake made in the past.
      - Reason/Regression - The issue has introduced a regression.
      - Reason/MultipleComponentInteraction - Issue occured due to interactions in multiple components.
      - Reason/Complex - Issue occurred due to complex scenario.
      - Reason/Invalid - Issue is invalid.
      - Reason/Other - None of the above cases.