/**
     * Test DataSerializer can be instantiated
     */
    @Test
    public void test_constructor() {
        DataSerializer ds = new DataSerializer();
        assertNotNull(ds, "DataSerializer should be instantiable");
    }

    /**
     * Test serialization and deserialization of simple String
     */
    @Test
    public void test_serializeDeserialize_string() {
        String original = "Hello, World!";

  private static final Predicate<@Nullable Integer> NEVER_REACHED =
      unused -> {
        throw new AssertionFailedError("This predicate should never have been evaluated");
      };

  /** Instantiable predicate with reasonable hashCode() and equals() methods. */
  static class IsOdd implements Predicate<@Nullable Integer>, Serializable {

        () -> tester.instantiate(FactoryMethodReturnsNullAndAnnotated.class));
  }

  public void testInstantiate_factoryMethodAcceptsNull() throws Exception {
    assertThat(tester.instantiate(FactoryMethodAcceptsNull.class).name).isNull();
  }

  public void testInstantiate_factoryMethodDoesNotAcceptNull() throws Exception {
    assertThat(tester.instantiate(FactoryMethodDoesNotAcceptNull.class).name).isNotNull();

      nullPointerTester.testConstructors(cls, visibility);
    }
    nullPointerTester.testStaticMethods(cls, visibility);
    if (hasInstanceMethodToTestNulls(cls, visibility)) {
      Object instance = instantiate(cls);
      if (instance != null) {
        nullPointerTester.testInstanceMethods(instance, visibility);
      }
    }
  }

  private boolean hasInstanceMethodToTestNulls(Class<?> c, Visibility visibility) {

 * create a class that implements {@link Disposable} and register it with this class.
 * </p>
 *
 * @author koichik
 */
public abstract class DisposableUtil {

    /**
     * Do not instantiate.
     */
    protected DisposableUtil() {
    }

    /** Registered {@link Disposable} */
    protected static final Deque<Disposable> disposables = newLinkedList();

    /**

import java.util.Locale;
import java.util.function.Supplier;

/**
 * Utility class for {@link Locale}.
 *
 * @author higa
 */
public abstract class LocaleUtil {

    /**
     * Do not instantiate.
     */
    protected LocaleUtil() {
    }

    /**
     * Returns a {@link Locale}.
     *
     * @param localeStr
     *            A string representing the locale
     * @return {@link Locale}

### Application Discovery { #application-discovery }

By default, the extension will automatically discover FastAPI applications in your workspace by scanning for files that instantiate `FastAPI()`. If auto-detection doesn't work for your project structure, you can specify an entrypoint via `[tool.fastapi]` in `pyproject.toml` or the `fastapi.entryPoint` VS Code setting using module notation (e.g. `myapp.main:app`).

* request: HTTP-запрос
* response: HTTP-ответ
* type hints: аннотации типов
* type annotations: аннотации типов
* context manager: менеджер контекста
* code base: кодовая база
* instantiate: создать экземпляр (avoid "инстанцировать")
* load balancer: балансировщик нагрузки
* load balance: балансировка нагрузки
* worker process: воркер-процесс (or `процесс воркера`)
* worker: воркер

import java.util.function.LongSupplier;

/**
 * Utility class for system operations.
 *
 * @author wyukawa
 * @author shinsuke
 *
 */
public abstract class SystemUtil {

    /**
     * Do not instantiate.
     */
    protected SystemUtil() {
    }

    /**
     * <code>file.encoding</code> system property. Example: UTF-8
     */
    public static final String FILE_ENCODING = System.getProperty("file.encoding");

 * {@code SortedMapTestSuiteBuilder}.
 *
 * @author Jesse Wilson
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")