Notice that before Maven 3.1.0, with logger created by Maven, some code used to pass logger from class to class because it could not create a new logger:

/**
 * Discovers and loads Maven POM files in a Maven project hierarchy.
 *
 * <p>This class recursively discovers all POM files in a Maven project hierarchy
 * and loads them as domtrip Documents. Individual strategies can create domtrip Editors
 * from these Documents as needed for superior formatting preservation.
 */
public class PomDiscovery {

    private PomDiscovery() {
        // noop
    }

    /**

Si hubiera tareas en segundo plano (cubiertas en la sección [Tareas en segundo plano](background-tasks.md), lo verás más adelante), se ejecutarán *después* de todo el middleware.

///

## Crear un middleware { #create-a-middleware }

Para crear un middleware usas el decorador `@app.middleware("http")` encima de una función.

La función middleware recibe:

* La `request`.

{* ../../docs_src/async_tests/app_a_py310/test_main.py hl[7] *}

/// tip

Note that the test function is now `async def` instead of just `def` as before when using the `TestClient`.

///

Then we can create an `AsyncClient` with the app, and send async requests to it, using `await`.

{* ../../docs_src/async_tests/app_a_py310/test_main.py hl[9:12] *}

This is the equivalent to:

```Python
response = client.get('/')

        assertNotNull(source.get(FieldNames.TIMESTAMP));
    }

    @Test
    public void testFromSource_requiresAllFields() {
        // Create a complete source map with all required fields
        Map<String, Object> source = new HashMap<>();
        source.put(FieldNames.TEXT, "test text");
        source.put(FieldNames.DOC_FREQ, 10L);

    return MoreObjects.firstNonNull(valueStrength, Strength.STRONG);
  }

  /**
   * Builds a thread-safe map. This method does not alter the state of this {@code MapMaker}
   * instance, so it can be invoked again to create multiple independent maps.
   *
   * <p>The bulk operations {@code putAll}, {@code equals}, and {@code clear} are not guaranteed to
   * be performed atomically on the returned map. Additionally, {@code size} and {@code

    void setUp() {
        response = new SrvCopyChunkCopyResponse();
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create response with default values")
        void testConstructor() {
            SrvCopyChunkCopyResponse copyResponse = new SrvCopyChunkCopyResponse();
            assertNotNull(copyResponse);
        }

        @Test

     * This is a micro-benchmark to demonstrate the O(1) vs O(n) improvement.
     */
    @Test
    public void test_lookupPerformance_SetFasterThanArray() {
        // Create a large array of fields
        int fieldCount = 1000;
        String[] fields = new String[fieldCount];
        for (int i = 0; i < fieldCount; i++) {
            fields[i] = "field" + i;
        }

/**
 * An accumulator that selects the "top" {@code k} elements added to it, relative to a provided
 * comparator. "Top" can mean the greatest or the lowest elements, specified in the factory used to
 * create the {@code TopKSelector} instance.
 *
 * <p>If your input data is available as an {@link Iterable} or {@link Iterator}, prefer {@link
 * Ordering#leastOf(Iterable, int)}, which provides the same implementation with an interface

   */
  public static <E extends @Nullable Object> void assertMultisetIsUnmodifiable(
      Multiset<E> multiset, E sampleElement) {
    Multiset<E> copy = LinkedHashMultiset.create(multiset);
    assertCollectionsAreEquivalent(multiset, copy);

    // Multiset is a collection, so we can use all those tests.
    assertCollectionIsUnmodifiable(multiset, sampleElement);