PropertyCustomizer not invoked for multiple properties of same type with the same annotations.

A PropertyCustomizer is not invoked for every property where those properties have the same type and annotations.

For example with the following class (HelloController test here):

  public static class ApiType {
      Long a;
      Long b;
      String c;
     // getters...
  }

A PropertyCustomizer is invoked for properties ‘a’ & ‘c’ only; it is not invoked for property b (which shares the result of ‘a’).

This appears to be because the swagger generator is caching properties that share the same type and annotations and this is bypassing the type resolution process that drives the PropertyCustomizer.

Springdoc 1.5.2 Spring boot 2.4.1

Expected behavior PropertyCustomizer is invoked for every property.

[bnasslahsen]

You still can use OpenApiCustomiser. This is a sample code that you can adapt:

@Bean
public OpenApiCustomiser openApiCustomiser() {
  return openAPI -> openAPI.getComponents().getSchemas().values()
      .forEach(schema -> schema.setRequired(new ArrayList<>(schema.getProperties().keySet())));
}

[jaco0646]

In SpringFox this can be accomplished using ModelPropertyBuilderPlugin, which applies to every Property of a Model, regardless of whether its Type is the same as another Property. Perhaps that offers some inspiration of how it might be implemented in SpringDoc.