[BUG] Invalid code: missing comma in hashCode()

Description

When I create code from the spec below, the result's hashCode() looks like this:

  @Override
  public int hashCode() {
    return Objects.hash(foosuper.hashCode());
  }

so there is a missing comma between foo and super.hashCode().

openapi-generator version

It works fine with 4.2.2 and fails with 4.2.3 and 4.3.0

OpenAPI declaration file content or url

swagger: "2.0"
info:
  title: Issue
  version: "1.0.0"

paths:
  "/childs":
    get:
      summary: get list of childs
      operationId: listChilds
      produces:
      - application/json
      responses:
        '200':
          description: OK
          schema:
            $ref: '#/definitions/Child'

definitions:

    Parent:
      type: object
      properties:
        bar:
          type: string

    Child:
      allOf:
      - $ref: '#/definitions/Parent'
      - type: object
      properties:
        foo:
          type: boolean

How to build

openApiGenerate {
    generatorName = "java"
    inputSpec = "$project.rootDir/networking-client-lib/specs/plugin_interface.yaml".toString()
    outputDir = "$buildDir/java".toString()
    modelPackage = "foo.bar"
    configOptions = [
            booleanGetterPrefix: "is"
    ]
    systemProperties = [
            models: ""
    ]
}

Reproduce the issue with the supplied Swagger 2.0 declaration and the Gradle openApiGenerate entry point using the Java generator. Compare generated output between versions 4.2.2 and 4.2.3; done means the Child model's generated hashCode() preserves a comma between inherited and local properties.