///

## Anotaciones de tipos con metadata

        assertTrue(exception instanceof Exception);
        assertTrue(exception instanceof Throwable);
    }

    public void test_serialization() {
        // Test that the exception has the correct serialVersionUID field
        ScriptEngineException exception = new ScriptEngineException("Serialization test");

        // Verify the exception can be created and basic properties work
        assertNotNull(exception);

    stream.defaultWriteObject();
    stream.writeObject(keyTypeOrObjectUnderJ2cl);
    Serialization.writeMap(this, stream);
  }

  @SuppressWarnings("unchecked") // reading field populated by writeObject
  @GwtIncompatible // java.io.ObjectInputStream
  private void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException {
    stream.defaultReadObject();

...sin agregar el parámetro requerido `needy`, verás un error como:

```JSON
{
  "detail": [
    {
      "type": "missing",
      "loc": [
        "query",
        "needy"
      ],
      "msg": "Field required",
      "input": null
    }
  ]
}
```

Como `needy` es un parámetro requerido, necesitarías establecerlo en la URL:

```
http://127.0.0.1:8000/items/foo-item?needy=sooooneedy
```

In this case, **FastAPI** will notice that there is more than one body parameter in the function (there are two parameters that are Pydantic models).

So, it will then use the parameter names as keys (field names) in the body, and expect a body like:

```JSON
{
    "item": {
        "name": "Foo",
        "description": "The pretender",
        "price": 42.0,
        "tax": 3.2
    },
    "user": {

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

Como `needy` é um parâmetro obrigatório, você precisaria defini-lo na URL:

```

func (endpoint *Endpoint) SetDiskIndex(i int) {
	endpoint.DiskIdx = i
}

func isValidURLEndpoint(u *url.URL) bool {
	// URL style of endpoint.
	// Valid URL style endpoint is
	// - Scheme field must contain "http" or "https"
	// - All field should be empty except Host and Path.
	isURLOk := (u.Scheme == "http" || u.Scheme == "https") &&
		u.User == nil && u.Opaque == "" && !u.ForceQuery &&
		u.RawQuery == "" && u.Fragment == ""

        void shouldHandleResponseMapOperations() {
            assertEquals(0, transport.getResponseMapSize());
            // Response map is accessible through protected field for testing
            // but we avoid complex interactions here for performance
        }
    }

        GsaConfigException exception = new GsaConfigException("Serialization test");

        // Verify the exception is serializable (has serialVersionUID)
        assertNotNull(exception);
        // The serialVersionUID field exists and is accessible at compile time
        assertTrue(exception instanceof java.io.Serializable);
    }

    public void test_stackTrace() {
        // Test that stack trace is properly preserved

      int expectedSize) {
    return new ObjectCountLinkedHashMap<K>(expectedSize);
  }

  private static final int ENDPOINT = -2;

  /*
   * The links field is not initialized directly in the constructor, but it's initialized by init(),
   * which the superconstructor calls.
   */

  /**