@GwtIncompatible
  private static final class StringConverter<T extends Enum<T>> extends Converter<String, T>
      implements Serializable {

    private final Class<T> enumClass;

    StringConverter(Class<T> enumClass) {
      this.enumClass = checkNotNull(enumClass);
    }

    @Override
    protected T doForward(String value) {
      return Enum.valueOf(enumClass, value);
    }

    @Override

    this.withLock {
      successCount++
    }
  }

  @Throws(IOException::class)
  fun start() {
    idleAtNs = System.nanoTime()
    if (protocol == Protocol.HTTP_2 || protocol == Protocol.H2_PRIOR_KNOWLEDGE) {
      startHttp2()
    }
  }

  @Throws(IOException::class)
  private fun startHttp2() {
    val socket = this.socket!!
    val source = this.source!!

/**
 * クラスを横断して処理するためのハンドラです。
 *
 * @author koichik
 * @see ClassHandler
 * @see TraversalUtil
 */
public abstract class ClassTraversalUtil {

    /** クラスファイルの拡張子 */
    protected static final String CLASS_SUFFIX = ".class";

    /** WARファイルの拡張子 */
    protected static final String WAR_FILE_EXTENSION = ".war";

    /** WARファイル内のクラスファイルのエントリプレフィックス */

from typing import Annotated, Union

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


class User(BaseModel):
    username: str
    full_name: Union[str, None] = None


@app.put("/items/{item_id}")
async def update_item(

/**
 * {@link Constructor}が見つからなかったときにスローされる例外Vです。
 *
 * @author higa
 */
public class ConstructorNotFoundRuntimeException extends ClRuntimeException {

    private static final long serialVersionUID = 8584662068396978822L;

    private final Class<?> targetClass;

    private final Object[] methodArgs;

    private final Class<?>[] paramTypes;

    /**
     * {@link ConstructorNotFoundRuntimeException}を作成します。
     *

        applyConventions(project, tasks, objects, layout, extension);

        extension.getQuickFeedback().convention(providers.provider(() -> project.hasProperty("quickDocs")));

        project.apply(target -> target.plugin(GradleReleaseNotesPlugin.class));
        project.apply(target -> target.plugin(GradleJavadocsPlugin.class));

 * wrapping a checked exception, prefer {@code ExecutionException}.
 *
 * @author Charles Fry
 * @since 10.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class UncheckedExecutionException extends RuntimeException {
  /*
   * Ideally, this class would have exposed only constructors that require a non-null cause. See

# Geçmişi, Tasarımı ve Geleceği

Bir süre önce, <a href="https://github.com/fastapi/fastapi/issues/3#issuecomment-454956920" class="external-link" target="_blank">bir **FastAPI** kullanıcısı sordu</a>:

> Bu projenin geçmişi nedir? Birkaç hafta içinde hiçbir yerden harika bir şeye dönüşmüş gibi görünüyor [...]

İşte o geçmişin bir kısmı.

## Alternatifler

from fastapi.testclient import TestClient


class OverrideResponse(JSONResponse):
    media_type = "application/x-override"


app = FastAPI()
router_a = APIRouter()
router_a_a = APIRouter()
router_a_b_override = APIRouter()  # Overrides default class
router_b_override = APIRouter()  # Overrides default class
router_b_a = APIRouter()
router_b_a_c_override = APIRouter()  # Overrides default class again


@app.get("/")
def get_root():

@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class SimpleAbstractMultisetTest extends TestCase {
  @J2ktIncompatible
  @GwtIncompatible // suite
  public static Test suite() {
    TestSuite suite = new TestSuite();
    suite.addTestSuite(SimpleAbstractMultisetTest.class);
    suite.addTest(
        MultisetTestSuiteBuilder.using(
                new TestStringMultisetGenerator() {