boolean set = false;
      @Nullable T value = null;

      void set(T value) {
        this.set = true;
        this.value = value;
      }

      T get() {
        /*
         * requireNonNull is safe because we call get() only if we've previously called set().
         *
         * (For further discussion of nullness, see the comment above the method.)
         */
        return requireNonNull(value);

   *
   * <p>The returned list maintains the values, but not the identities, of {@code Integer} objects
   * written to or read from it. For example, whether {@code list.get(0) == list.get(0)} is true for
   * the returned list is unspecified.
   *
   * <p>The returned list is serializable.
   *
   * <p><b>Note:</b> when possible, you should represent your data as an {@link ImmutableIntArray}

Kullanım şekli oldukça basit. Örneğin bir `GET` isteği yapmak için aşağıdaki yeterli:

```Python
response = requests.get("http://example.com/some/url")
```

Bunun FastAPI'deki API <abbr title="Yol İşlemi: Path Operation">*yol işlemi*</abbr> şöyle görünür:

```Python hl_lines="1"
@app.get("/some/url")
def read_url():
    return {"message": "Hello World!"}
```

            if (value instanceof final Collection<?> coll && !coll.isEmpty()) {
                // care performance for List that the most frequent pattern
                final Object first = coll instanceof List<?> ? ((List<?>) coll).get(0) : coll.iterator().next();
                if (first instanceof Entity) {
                    data.register(key, coll.stream().map(BeanUtil::copyBeanToNewMap).collect(Collectors.toList()));
                    return;

    assertFalse(multimap().containsEntry(k3(), v3()));
  }

  public void testContainsEntryAgreesWithGet() {
    for (K k : sampleKeys()) {
      for (V v : sampleValues()) {
        assertEquals(multimap().get(k).contains(v), multimap().containsEntry(k, v));
      }
    }
  }

  @CollectionSize.Require(absent = ZERO)
  @MapFeature.Require({ALLOWS_NULL_KEYS, ALLOWS_NULL_VALUES})
  public void testContainsEntryNullYes() {

    for (int i = 0; i < numThreads; i++) {
      Thread thread =
          new Thread() {
            @Override
            public void run() {
              try {
                f.get();
              } catch (Throwable expected) {
              }
            }
          };
      thread.start();
      blockedThreads.add(thread);
    }
    for (int i = 0; i < numListeners; i++) {

@GwtCompatible
public enum MapFeature implements Feature<Map> {
  /**
   * The map does not throw {@code NullPointerException} on calls such as {@code containsKey(null)},
   * {@code get(null)}, {@code keySet().contains(null)} or {@code remove(null)}.
   */
  ALLOWS_NULL_KEY_QUERIES,
  ALLOWS_NULL_KEYS(ALLOWS_NULL_KEY_QUERIES),
  /**

 *         SomeClass.logger.removeHandler(handler);
 *       }
 *     });
 *   }
 *
 *   public void test() {
 *     SomeClass.foo();
 *     LogRecord firstRecord = handler.getStoredLogRecords().get(0);
 *     assertEquals("some message", firstRecord.getMessage());
 *   }
 * </pre>
 *
 * @author Kevin Bourrillion
 * @since 10.0
 */
@GwtCompatible
@NullMarked
public class TestLogHandler extends Handler {

    public DefaultArtifactTransformationManager(Map<String, ArtifactTransformation> artifactTransformations) {
        this.artifactTransformations = Stream.of("release", "latest", "snapshot")
                .map(artifactTransformations::get)
                .filter(Objects::nonNull)
                .collect(Collectors.toList());
    }

    @Override
    public void transformForResolve(Artifact artifact, RepositoryRequest request)

        assertEquals(2, elements.size());

        @SuppressWarnings("deprecation")
        List<Artifact> artifacts = project.getCompileArtifacts();
        assertEquals(1, artifacts.size());
        assertTrue(artifacts.get(0).getFile().getName().endsWith("tools.jar"));
    }