assertTrue(s.contains("hello"));
    }

    @Test
    @DisplayName("Should serialize and deserialize preserving message and cause")
    void testJavaSerialization() throws Exception {
        // Given
        SpnegoException original = new SpnegoException("serialize me", new IllegalArgumentException("iaex"));

        // When
        byte[] bytes;

```

</div>

Luego dirígete a la interfaz de `/docs`, verás que **FastAPI** está usando estos **modelos** para **documentar** la API, y los usará para **serializar** y **validar** los datos también.

<div class="screenshot">
<img src="/img/tutorial/sql-databases/image01.png">
</div>

## Actualizar la App con Múltiples Modelos

public class MapSerializationTester<K, V> extends AbstractMapTester<K, V> {
  @CollectionFeature.Require(SERIALIZABLE)
  public void testReserializeMap() {
    Map<K, V> deserialized = SerializableTester.reserialize(getMap());
    new EqualsTester().addEqualityGroup(getMap(), deserialized).testEquals();
  }

		<property name="name">"fessStandardTransformer"</property>
	</component>

	<component name="dataSerializer" class="org.codelibs.fess.crawler.serializer.DataSerializer" instance="singleton">
	</component>

    ajv-keywords "^3.5.2"

serialize-javascript@6.0.0:
  version "6.0.0"
  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-6.0.0.tgz#efae5d88f45d7924141da8b5c3a7a7e663fefeb8"
  integrity sha512-Qr3TosvguFt8ePWqsvRfrKyQXIiW+nGbYpy8XK24NQHE83caxWt+mIymTT19DGFbNWNLfEwsrkSmN64lVWB9ag==
  dependencies:
    randombytes "^2.1.0"

serialize-javascript@^6.0.1:
  version "6.0.1"

import org.jspecify.annotations.NullMarked;

/**
 * Methods factored out so that they can be emulated differently in GWT.
 *
 * @author Chris Povirk
 */
@GwtCompatible
@NullMarked
final class Platform {
  /** Serializes and deserializes the specified object. */
  @SuppressWarnings("unchecked")
  static <T> T reserialize(T object) {
    checkNotNull(object);
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    try {

import static com.google.common.base.Preconditions.checkNotNull;

/**
 * Methods factored out so that they can be emulated differently in GWT.
 *
 * @author Chris Povirk
 */
final class Platform {
  /** Serializes and deserializes the specified object (a no-op under GWT). */
  @SuppressWarnings("unchecked")
  static <T> T reserialize(T object) {
    return checkNotNull(object);
  }

  private Platform() {}

    /**
     * @throws Exception
     */
    public void testSerialize() throws Exception {
        final String[] a = new String[] { "1", "2" };
        final String[] b = (String[]) SerializeUtil.serialize(a);
        assertEquals("1", b.length, a.length);
        assertEquals("2", "1", b[0]);
        assertEquals("3", "2", b[1]);
    }

    /**
     * @throws Exception
     */

    Predicate<Class<?>> predicate = Predicates.subtypeOf(Integer.class);
    Predicate<Class<?>> reserialized = SerializableTester.reserializeAndAssert(predicate);

    assertEvalsLike(predicate, reserialized, Integer.class);
    assertEvalsLike(predicate, reserialized, Float.class);
    assertEvalsLike(predicate, reserialized, null);
  }

  /*
   * Tests for Predicates.isNull()
   */

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.crawler.serializer;

import org.codelibs.fess.unit.UnitFessTestCase;

public class DataSerializerTest extends UnitFessTestCase {

    @Override
    public void setUp() throws Exception {
        super.setUp();
    }