Spring Boot 3.2.2/3.2.3 validation message regression

These settings are ineffective for RestController methods which have validation constraints directly on parameters:

server.error.include-binding-errors=always
server.error.include-message=always

Instructions

1. Run ./mvnw clean verify.
2. Observe that the test using the endpoint without the @Pattern constraint works as expected. The endpoint with the constraint however returns no detailed error message for the mydata just as if the server.error properties would be set to never.
3. Change spring-boot-starter-parentversion to 3.2.0 or 3.2.1 and rerun the tests. Observe that both cases return detailed error messages.

Response comparison

curl -X POST --location "http://localhost:8080/api/dummy/with-constraint" \
-H "Content-Type: application/json" \
-H "Accept: application/json" \
-d '{
"propertyA": ""
}'

Response body with Spring Boot 3.2.0 and 3.2.1:

{
  "timestamp": "2024-03-08T06:34:00.115+00:00",
  "status": 400,
  "error": "Bad Request",
  "message": "Validation failed for object='requestData'. Error count: 1",
  "errors": [
    {
      "codes": [
        "NotBlank.requestData.propertyA",
        "NotBlank.propertyA",
        "NotBlank.java.lang.String",
        "NotBlank"
      ],
      "arguments": [
        {
          "codes": [
            "requestData.propertyA",
            "propertyA"
          ],
          "arguments": null,
          "defaultMessage": "propertyA",
          "code": "propertyA"
        }
      ],
      "defaultMessage": "must not be blank",
      "objectName": "requestData",
      "field": "propertyA",
      "rejectedValue": "",
      "bindingFailure": false,
      "code": "NotBlank"
    }
  ],
  "path": "/api/dummy/with-constraint"
}

Response body with Spring Boot 3.2.2 and 3.2.3:

{
  "timestamp": "2024-03-08T06:31:44.778+00:00",
  "status": 400,
  "error": "Bad Request",
  "message": "Validation failure",
  "path": "/api/dummy/with-constraint"
}