*, field: ModelField, value: Any, values: Dict[str, Any], loc: Tuple[str, ...]
) -> Tuple[Any, List[Any]]:
    if value is None:
        if field.required:
            return None, [get_missing_field_error(loc=loc)]
        else:
            return deepcopy(field.default), []
    v_, errors_ = field.validate(value, values, loc=loc)
    if isinstance(errors_, ErrorWrapper):
        return None, [errors_]

    }

    @Test
    void testStrictToolchainsParseException() throws Exception {
        Location loc = mock(Location.class);
        when(loc.getLineNumber()).thenReturn(4);
        when(loc.getColumnNumber()).thenReturn(2);
        XMLStreamException parseException = new XMLStreamException("MESSAGE", loc);
        doThrow(new XmlReaderException("MESSAGE", getLocation(parseException), parseException))

            "ValidationError": {
                "title": "ValidationError",
                "required": [
                    "loc",
                    "msg",
                    "type"
                ],
                "type": "object",
                "properties": {
                    "loc": {
                        "title": "Location",
                        "type": "array",
                        "items": {

```
http://127.0.0.1:8000/items/foo-item
```

...sans ajouter le paramètre requis `needy`, vous aurez une erreur :

```JSON
{
    "detail": [
        {
            "loc": [
                "query",
                "needy"
            ],
            "msg": "field required",
            "type": "value_error.missing"
        }
    ]
}
```

            }

            if (source != null) {
                try {
                    org.apache.maven.api.model.InputLocation loc = model.getLocation("");
                    org.apache.maven.api.model.InputSource v4src = loc != null ? loc.getSource() : null;
                    if (v4src != null) {
                        Field field = InputSource.class.getDeclaredField("modelId");

* ✅ Fix new/recent tests with new fixed `ValidationError` JSON Schema. PR [#4806](https://github.com/tiangolo/fastapi/pull/4806) by [@tiangolo](https://github.com/tiangolo).
* 🐛 Fix JSON Schema for `ValidationError` at field `loc`. PR [#3810](https://github.com/tiangolo/fastapi/pull/3810) by [@dconathan](https://github.com/dconathan).