[BUG] [GO] Stack Overflow when cycle present in spec

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

I have provided a minimal version of the schema below with what I am facing the issue. In a way, it is similar to https://github.com/OpenAPITools/openapi-generator/issues/4904. It works fine if I remove one of the items from AllOf from any attribute or remove the discriminator. However, I do not own the schema so it would not be possible for me to modify it.

Below is the error that I am getting:

Exception in thread "main" java.lang.RuntimeException: Could not process model 'Type'.Please make sure that your schema is correct!
        at org.openapitools.codegen.DefaultGenerator.generateModels(DefaultGenerator.java:518)
        at org.openapitools.codegen.DefaultGenerator.generate(DefaultGenerator.java:912)
        at org.openapitools.codegen.cmd.Generate.execute(Generate.java:465)
        at org.openapitools.codegen.cmd.OpenApiGeneratorCommand.run(OpenApiGeneratorCommand.java:32)
        at org.openapitools.codegen.OpenAPIGenerator.main(OpenAPIGenerator.java:66)
Caused by: java.lang.RuntimeException: Stack overflow hit when looking for Type an infinite loop starting and ending at ResponseDetails was seen
        at org.openapitools.codegen.DefaultCodegen.getAllOfDescendants(DefaultCodegen.java:3351)
        at org.openapitools.codegen.DefaultCodegen.createDiscriminator(DefaultCodegen.java:3420)
        at org.openapitools.codegen.DefaultCodegen.fromModel(DefaultCodegen.java:2906)
        at org.openapitools.codegen.DefaultGenerator.processModels(DefaultGenerator.java:1291)
        at org.openapitools.codegen.DefaultGenerator.generateModels(DefaultGenerator.java:513)
        ... 4 more

openapi-generator version

6.2.0

OpenAPI declaration file content

{
    "openapi": "3.0.0",
    "info": {
        "title": "Recursion Bug",
        "version": "2.0.0"
    },
    "paths": {},
    "components": {
        "schemas": {
            "Type": {
                "type": "object",
                "properties": {
                    "Type": { "type": "string" }
                },
                "discriminator": {
                    "propertyName": "Type",
                    "mapping": { "something": "#/components/schemas/CreationDetails" }
                }
            },
            "CreationDetails": {
                "allOf": [
                    { "$ref": "#/components/schemas/Type" }
                ]
            },
            "UpdateDetails": {
                "allOf": [
                    { "$ref": "#/components/schemas/CreationDetails" }
                ]
            },
            "ResponseDetails": {
                "allOf": [
                    { "$ref": "#/components/schemas/CreationDetails" },
                    { "$ref": "#/components/schemas/UpdateDetails" }
                ]
            }
        }
    }
}

Generation Details

Steps to reproduce

openapi-generator-cli generate -i https://gist.githubusercontent.com/AniketK-Crest/06c5248a2d1f34bc544c9ce758e7d2e3/raw/14e024cba487ccc8a2d682918ebfbd4792e6b96a/recursion-bug.json -g go -o ./Generated/recursion-bug-go-client

Related issues/PRs

https://github.com/OpenAPITools/openapi-generator/issues/4904
https://github.com/OpenAPITools/openapi-generator/pull/4906
https://github.com/OpenAPITools/openapi-generator/issues/5229

Suggest a fix

Start with DefaultCodegen.java, particularly getAllOfDescendants, createDiscriminator, and fromModel, using the provided schema and generation command to reproduce the recursion. Trace the Type, CreationDetails, UpdateDetails, and ResponseDetails references. Done means the Go generation no longer ends in a stack overflow for this cycle and regression coverage verifies the behavior.