Bug Report Checklist

• Description - openapi-generator-cli.jar is generating jmeter tests with requests which have empty body data.
  Used API java -jar openapi-generator-cli.jar generate -i petstore.json -g jmeter to generate tests.

• Used https://petstore.swagger.io/v2/swagger.json to generate jmeter tests.

• Screenshot of request from Swagger:
  

• Generated Jmeter request with empty body:
  

• Actual Result - Body data is empty in generated Jmeter's requests.

• Expected Result - Body data should not be empty in generated Jmeter's requests.