[BUG] [JAVA] allOf object are not correctly generated with properties REF_AS_PARENT_IN_ALLOF=true and REFACTOR_ALLOF_WITH_PROPERTIES_ONLY=true

[JelmerBouma1985]

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?

Description

Since release of 7.9.0 allOf objects don´t extend the parent anymore when normalizer REF_AS_PARENT_IN_ALLOF=true and REFACTOR_ALLOF_WITH_PROPERTIES_ONLY=true are used.

I expect the child object extends the parent object which works as expected until 7.9.0. Below generated code from 7.8.0:

public class Child1 extends Parent {
...
}

below code is generated code from 7.9.0

public class Child1 {
...
}

openapi-generator version

7.9.0

OpenAPI declaration file content or url

test.yaml

openapi: 3.0.0
info:
  title: 'AllOf does not work'
  description: 'Minimal yaml to showcase allOf does not work anymore'
  version: info
paths:
  /allOf:
    get:
      operationId: allOf
      responses:
        "200":
          description: oke
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Parent'
components:
  schemas:
    Parent:
      type: object
      properties:
        p1:
          type: integer
    Child1:
      properties:
        p2:
          type: string
      allOf:
        - $ref: '#/components/schemas/Parent'

Generation Details

I'm using the openapi-generator-maven-plugin

<plugin>
                <groupId>org.openapitools</groupId>
                <artifactId>openapi-generator-maven-plugin</artifactId>
                <version>7.9.0</version>
                <configuration>
                    <openapiNormalizer>REF_AS_PARENT_IN_ALLOF=true,REFACTOR_ALLOF_WITH_PROPERTIES_ONLY=true</openapiNormalizer>
                    <generatorName>spring</generatorName>
                    <configOptions>
                        <useSpringBoot3>true</useSpringBoot3>
                        <interfaceOnly>true</interfaceOnly>
                    </configOptions>
                </configuration>
                <executions>
                    <execution>
                        <id>allOf</id>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                        <configuration>
                            <inputSpec>${basedir}/src/main/resources/openapi/Showcase.yaml</inputSpec>
                            <generatorName>spring</generatorName>
                            <generateSupportingFiles>true</generateSupportingFiles>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

Steps to reproduce

java -jar openapi-generator-cli.jar generate -g spring -i test.yaml -o output/ --openapi-normalizer REF_AS_PARENT_IN_ALLOF=true,REFACTOR_ALLOF_WITH_PROPERTIES_ONLY=true

[wing328]

thanks for reporting the issue. i will try to take a look over the weekend