I am using openapi-generator-maven-plugin 6.6.0 to generate a rest api (design first). I checked the open-api.yaml file in the official editor, it shows no syntax error in the YAML and it shows the examples correctly.

When I generate the code with maven, all the examples are missing in swagger UI after deploying the service. Any idea why?

open-api.yaml:

openapi: 3.0.3

      /user/getUserByName:
        get:
          tags:
            - User
          summary: Get User By Name
          operationId: getUserByName
          parameters:
            - name: name
              in: query
              description: name
              required: true
              schema:
                type: string
                example: John

Maven Plugin:

<plugin>
<groupId>org.openapitools</groupId>
<artifactId>openapi-generator-maven-plugin</artifactId>
<version>${openapi-generator-maven-plugin.version}</version>
<executions>
  <execution>
    <id>server-sources</id>
    <phase>generate-sources</phase>
    <goals>
      <goal>generate</goal>
    </goals>
    <configuration>
      <generatorName>spring</generatorName>
      <generateApiDocumentation>true</generateApiDocumentation>
      <library>spring-boot</library>
      <inputSpec>${project.basedir}/src/main/resources/open-api.yaml</inputSpec>
      <generateApiTests>false</generateApiTests>
      <generateModelTests>false</generateModelTests>
      <supportingFilesToGenerate>ApiUtil.java,SpringDocConfiguration.java</supportingFilesToGenerate>
      <configOptions>
        <delegatePattern>true</delegatePattern>
        <useTags>true</useTags>
        <dateLibrary>java8-localdatetime</dateLibrary>
      </configOptions>
      <packageName>xxx.service</packageName>
      <apiPackage>xxx.api</apiPackage>
      <modelPackage>xxx.model</modelPackage>
    </configuration>
  </execution>
</executions>
</plugin>

Swagger Versions:

    <io.swagger.version>1.6.6</io.swagger.version>
    <io.swagger.core.v3.version>2.2.8</io.swagger.core.v3.version>