* errors for using {@code get(Comparator.class)} as a {@code Comparator<Foo>}, for example.
 * Immutable empty instances are returned for collection types; {@code ""} for string; {@code 0} for
 * number types; reasonable default instance for other stateless types. For mutable types, a fresh
 * instance is created each time {@code get()} is called.
 *
 * @author Kevin Bourrillion

    }

    private WithExceptionalConstructor(String unused) {}
  }

  private static class WithPublicConstant {
    @Keep public static final WithPublicConstant INSTANCE = new WithPublicConstant();
  }

  private static class ParentClassHasConstant extends WithPublicConstant {}

  public static class WithGenericConstant<T> {
    public static final WithGenericConstant<String> STRING_CONSTANT = new WithGenericConstant<>();

---

Mas se você estiver curioso sobre este exemplo de código específico e ainda entretido, aqui vão alguns detalhes extras.

#### String com `value.startswith()` { #string-with-value-startswith }

Percebeu? Uma string usando `value.startswith()` pode receber uma tupla, e verificará cada valor na tupla:

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py ln[16:19] hl[17] *}

  @Param({"Small", "Medium", "Large"})
  String enumSize;

  @Param({"0.2", "0.8"})
  float hitRate;

  // We could avoid the raw type here by initializing this with a ternary (? SmallEnum.class : ...).
  // However, we end up needing a raw type in getIfPresent, as discussed there.
  @SuppressWarnings("rawtypes")
  private Class<? extends Enum> enumType;

  private String[] sampleData;

  @BeforeExperiment

 * via file upload through the admin UI.
 */
public class InstallForm {

    /** Plugin identifier (required, max 400 characters) */
    @Required
    @Size(max = 400)
    public String id;

    /**
     * Default constructor.
     */
    public InstallForm() {
        // Default constructor
    }

    /** JAR file containing the plugin to install */
    public MultipartFormFile jarFile;

 * This form extends CreateForm and adds fields necessary for editing existing search list entries.
 */
public class EditForm extends CreateForm {

    /** Unique identifier for the search list entry */
    public String id;

    /** Sequence number for ordering search list entries */
    @ValidateTypeFailure
    public Long seqNo;

    /** Primary term value for search list configuration */
    @ValidateTypeFailure

  }

  @Test
  fun testMockWebServer() {
    server.enqueue(MockResponse(body = "abc"))
    server.start()

    client.newCall(Request(url = server.url("/"))).execute().use {
      assertThat(it.body.string()).isEqualTo("abc")
    }
  }

  @Test
  fun testExternalSite() {
    client.newCall(Request(url = "https://google.com/robots.txt".toHttpUrl())).execute().use {
      assertThat(it.code).isEqualTo(200)
    }

  fun enqueueRequestCookies(vararg cookies: Cookie) {
    requestCookies.add(cookies.toList())
  }

  fun takeResponseCookies(): List<Cookie> = responseCookies.removeFirst()

  fun assertResponseCookies(vararg cookies: String?) {
    assertThat(takeResponseCookies().map(Cookie::toString)).containsExactly(*cookies)
  }

  override fun saveFromResponse(
    url: HttpUrl,
    cookies: List<Cookie>,
  ) {
    responseCookies.add(cookies)

 *
 * @author Colin Decker
 */
@NullUnmarked
public class TestCharSource extends CharSource implements TestStreamSupplier {

  private final TestByteSource byteSource;

  public TestCharSource(String content, TestOption... options) {
    this.byteSource = new TestByteSource(content.getBytes(UTF_8), options);
  }

  @Override
  public boolean wasStreamOpened() {
    return byteSource.wasStreamOpened();
  }

          protected Object delegate() {
            return delegate;
          }
        };
    new EqualsTester().addEqualityGroup(forward).testEquals();
  }

  public void testEqualsSymmetric() {
    Set<String> delegate = newHashSet("foo");
    ForwardingObject forward =
        new ForwardingObject() {
          @Override
          protected Object delegate() {
            return delegate;
          }
        };