How to stop open API from initialising list variables in java

openapi version 3.0.2

I'm using the below Yaml for our code generation

  Order:
    type: "object"
    properties:
      LineItems:
        type: "array"
        items:
          type: "string"
      Pricing:
        type: "array"
        items:
          type: "string"

While generating the pojo, lists are getting initialized to null.

private List<String> LineItems = null;

What should I do if I don't want a list to be initialsed at all?

example: What I need is

private List<String> LineItems;

What I don't want is
private List<String> LineItems = null;
or

private List<String> LineItems = new ArrayList();

Start with the OpenAPI 3.0.2 YAML and the generated Java POJO shown in the issue. Identify the generator option or template controlling list-field initialization, then verify that generated fields are declarations without either null or ArrayList assignments.