For the code with following validation constraint

~~~
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Pattern;
import javax.validation.constraints.Size;

public class Fruit {

    @NotNull
    @Size(min = 1, max = 4)
    @Pattern(regexp = "^[A-Za-z]+$")
    public String name;

~~~

From SwaggerUI-> OpenAPI, the document does not include the Pattern validation
components:
  schemas:
    Fruit:
      required:
      - name
      type: object
      properties:
        name:
          maxLength: 4
          minLength: 1
          type: string
          nullable: false
        description:
          type: string