[BUG][typescript] Cannot read properties of undefined (reading 'normalizeMediaType')

[bbortt]

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

using TypeScript generated APIs I run into:

Cannot read properties of undefined (reading 'normalizeMediaType')
TypeError: Cannot read properties of undefined (reading 'normalizeMediaType')
    at getPreferredMediaType ([...]\models\ObjectSerializer.ts:269:54)

when looking at the code, the problem seems pretty obvious. as far as I am concerned, this does not exist in a static method. that is the point of being static, isn't it? having no reference to an object.

openapi-generator version

7.10.0 of org.openapitools:openapi-generator-maven-plugin. using the typescript generator.

OpenAPI declaration file content or url

not relevant imo. can be reproduced using petstore API.

Generation Details

in the build section of pom.xml the following is contained.

<plugin>
                        <groupId>org.openapitools</groupId>
                        <artifactId>openapi-generator-maven-plugin</artifactId>
                        <configuration>
                            <configOptions>
                                <oas3>true</oas3>
                                <useTags>true</useTags>
                            </configOptions>
                            <generatorName>typescript</generatorName>
                            <output>${generator.output.dir}</output>
                        </configuration>
                        <executions>
                            <execution>
                                <id>generate-registration-resource</id>
                                <phase>generate-resources</phase>
                                <goals>
                                    <goal>generate</goal>
                                </goals>
                                <configuration>
                                    <inputSpec>${maven.multiModuleProjectDirectory}/specs/${api.registration-controller.v2.file}</inputSpec>
                                    <output>${generator.output.dir}/registration</output>
                                </configuration>
                            </execution>

Steps to reproduce

if really required I can create a reproducer. but the bug is pretty logical imo.

I have applied the proposed fix locally, recompiled the library (without regenerating the API) and everything went just fine.

Related issues/PRs

Suggest a fix

update the ObjectSerializer.ts to this:

        const normalMediaTypes = mediaTypes.map(ObjectSerializer.normalizeMediaType);

instead of

        const normalMediaTypes = mediaTypes.map(this.normalizeMediaType);