Open Api Generator having issues with api.github.com.json

Comienza con el esquema api.github.com.json referenciado en la issue y reproduce la generación usando OpenAPI Generator 7.11.0 con la configuración de Java mostrada. Compara el modelo ContentDirectory generado con las declaraciones content-directory original y modificada; se considera terminado cuando la generación ya no produce el modelo de utilidad con el nombre incorrecto.

Issue

We were using the Open Api Generator(OAG) to generate some Java models based on the current OAS schema JSON . This generates a wrong-named model when it's doing the ContentDirectory Schema Model, which is called from here

"application/json": {
                "schema": {
                  "oneOf": [
                    {
                      "$ref": "#/components/schemas/content-directory"
                    },
                    {
                      "$ref": "#/components/schemas/content-file"
                    },
                    {
                      "$ref": "#/components/schemas/content-symlink"
                    },
                    {
                      "$ref": "#/components/schemas/content-submodule"
                    }
                  ],
                  "discriminator": {
                    "propertyName": "type",
                    "mapping": {
                      "array": "#/components/schemas/content-directory",
                      "file": "#/components/schemas/content-file",
                      "symlink": "#/components/schemas/content-symlink",
                      "submodule": "#/components/schemas/content-submodule"
                    }
                  }
                }

Possible solution

To patch the bug, I've changed the definition of the schema to avoid the wrong-named model issue. This happens because when OAG couldn't figure out the logic or a declaration, it generates a utility model to patch this issue.
Here is the original ContentDirectory declaration:

"content-directory": {
        "title": "Content Directory",
        "description": "A list of directory items",
        "type": "array",
        "items": {
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "enum": [
                "dir",
                "file",
                "submodule",
                "symlink"
              ]
            },
            "size": {
              "type": "integer"
            },
            "name": {
              "type": "string"
            },
            "path": {
              "type": "string"
            },
            "content": {
              "type": "string"
            },
            "sha": {
              "type": "string"
            },
            "url": {
              "type": "string",
              "format": "uri"
            },
            "git_url": {
              "type": "string",
              "format": "uri",
              "nullable": true
            },
            "html_url": {
              "type": "string",
              "format": "uri",
              "nullable": true
            },
            "download_url": {
              "type": "string",
              "format": "uri",
              "nullable": true
            },
            "_links": {
              "type": "object",
              "properties": {
                "git": {
                  "type": "string",
                  "format": "uri",
                  "nullable": true
                },
                "html": {
                  "type": "string",
                  "format": "uri",
                  "nullable": true
                },
                "self": {
                  "type": "string",
                  "format": "uri"
                }
              },
              "required": [
                "git",
                "html",
                "self"
              ]
            }
          },
          "required": [
            "_links",
            "git_url",
            "html_url",
            "download_url",
            "name",
            "path",
            "sha",
            "size",
            "type",
            "url"
          ]
        }
      }

And here is the modified declaration that we used to patch the issue.

"content-directory": {
  "title": "Content Directory",
  "description": "A list of directory items",
    "type": "object",
    "properties": {
      "type": {
        "type": "string",
        "enum": [
          "array"
        ]
      },
      "size": {
        "type": "integer"
      },
      "name": {
        "type": "string"
      },
      "path": {
        "type": "string"
      },
      "content": {
        "type": "string"
      },
      "sha": {
        "type": "string"
      },
      "url": {
        "type": "string",
        "format": "uri"
      },
      "git_url": {
        "type": "string",
        "format": "uri",
        "nullable": true
      },
      "html_url": {
        "type": "string",
        "format": "uri",
        "nullable": true
      },
      "download_url": {
        "type": "string",
        "format": "uri",
        "nullable": true
      },
      "_links": {
        "type": "object",
        "properties": {
          "git": {
            "type": "string",
            "format": "uri",
            "nullable": true
          },
          "html": {
            "type": "string",
            "format": "uri",
            "nullable": true
          },
          "self": {
            "type": "string",
            "format": "uri"
          }
        },
        "required": [
          "git",
          "html",
          "self"
        ]
      }
    },
    "required": [
      "_links",
      "git_url",
      "html_url",
      "download_url",
      "name",
      "path",
      "sha",
      "size",
      "type",
      "url"
    ]
}

This is the OAG version used to generate the model: 7.11.0
and the config used in the generator:

openApiGenerate {
    generatorName.set("java")
    inputSpec.set("$projectDir/src/main/resources/api.github.com.fixed.json")
    outputDir.set("$buildDir")
    apiPackage.set("com.github.client.api")
    modelPackage.set("com.github.client.model")
    configOptions.put("dateLibrary", "java8")
    ignoreFileOverride.value("$projectDir/.openapi-generator-ignore")
    configOptions.put("library", "apache-httpclient")
    configOptions.put("sourceFolder", "generated/main/java")
    configOptions.put("openApiNullable", "false")
    configOptions.put("invokerPackage", "com.github.client")
}