CountDownLatch latch = new CountDownLatch(1);
    SettableFuture<?> future = SettableFuture.create();
    Executor delegate =
        new Executor() {
          @Override
          public void execute(Runnable task) {
            if (future.set(null)) {
              awaitUninterruptibly(latch);
            }
            throw new RejectedExecutionException();

    requestCanceledLatch: CountDownLatch?,
  ) {
    val call = client.newCall(Request(server.url("/")))
    val latch = CountDownLatch(1)
    call.enqueue(
      object : Callback {
        override fun onFailure(
          call: Call,
          e: IOException,
        ) {
          latch.countDown()
        }

        override fun onResponse(
          call: Call,
          response: Response,

                } catch (Exception e) {
                    fail("Concurrent session handling failed: " + e.getMessage());
                } finally {
                    latch.countDown();
                }
            });
        }

        assertTrue(latch.await(10, TimeUnit.SECONDS));
        executor.shutdown();
    }

    @Test
    @DisplayName("Test invalid session ID handling")

        "platforms/documentation/docs/src/docs/release/notes.md",
        "platforms/documentation/docs/src/docs/release/release-notes-assets/",
        "subprojects/launcher/src/main/resources/release-features.txt",
        "platforms/core-runtime/launcher/src/main/resources/release-features.txt"
    ));

    public static void main(String[] args) throws Exception {
        if (args.length != 0) {

{* ../../docs_src/authentication_error_status_code/tutorial001_an_py310.py hl[9:13] *}

/// tip | Dica

Perceba que a função retorna a instância da exceção, ela não a lança. O lançamento é feito no restante do código interno.

  exit 1
fi

if [ -z "$JAVA_HOME" ] ; then
  echo "Warning: JAVA_HOME environment variable is not set."
fi

CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher

# traverses directory structure from process work directory to filesystem root
# first directory with .mvn subdirectory is considered project base directory
find_maven_basedir() {

  if [ -z "$1" ]
  then

Wie auch bei der Deklaration von Query-Parametern gilt: Wenn ein Modellattribut einen Defaultwert hat, ist das Attribut nicht erforderlich. Andernfalls ist es erforderlich. Verwenden Sie `None`, um es einfach optional zu machen.

Aber FastAPI unterstützt auf die gleiche Weise auch die Verwendung von [`dataclasses`](https://docs.python.org/3/library/dataclasses.html):

{* ../../docs_src/dataclasses_/tutorial001_py310.py hl[1,6:11,18:19] *}

Das ist dank **Pydantic** ebenfalls möglich, da es [„`dataclasses` intern unterstützt“](https://docs.pydantic.dev/latest/concepts/dataclasses/#use-of-stdlib-dataclasses-with-basemodel).

    CountDownLatch latch = new CountDownLatch(1);
    SettableFuture<?> future = SettableFuture.create();
    Executor delegate =
        new Executor() {
          @Override
          public void execute(Runnable task) {
            if (future.set(null)) {
              awaitUninterruptibly(latch);
            }
            throw new RejectedExecutionException();

                            }
                        }
                    }
                } finally {
                    latch.countDown();
                }
            });
        }

        assertTrue(latch.await(10, TimeUnit.SECONDS), "Concurrent ops should complete");
        executor.shutdown();