* @author Louis Wasserman
 */
@GwtCompatible
@NullMarked
public abstract class TestCharacterListGenerator implements TestListGenerator<Character> {
  @Override
  public SampleElements<Character> samples() {
    return new Chars();
  }

  @Override
  public List<Character> create(Object... elements) {
    Character[] array = new Character[elements.length];
    int i = 0;
    for (Object e : elements) {

package com.google.common.collect.testing;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;

/**
 * Simple derived class to verify that we handle generics correctly.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
public class DerivedComparable extends BaseComparable {
  public DerivedComparable(String s) {

   * already been re-added.
   */
  // Technically should accept RemovalNotification<? extends K, ? extends V>, but because
  // RemovalNotification is guaranteed covariant, let's make users' lives simpler.
  void onRemoval(RemovalNotification<K, V> notification);

import org.jspecify.annotations.Nullable;

/**
 * Soft reference with a {@code finalizeReferent()} method which a background thread invokes after
 * the garbage collector reclaims the referent. This is a simpler alternative to using a {@link
 * ReferenceQueue}.
 *
 * @author Bob Lee
 * @since 2.0
 */
@J2ktIncompatible
@GwtIncompatible
public abstract class FinalizableSoftReference<T> extends SoftReference<T>

import org.jspecify.annotations.Nullable;

/**
 * Soft reference with a {@code finalizeReferent()} method which a background thread invokes after
 * the garbage collector reclaims the referent. This is a simpler alternative to using a {@link
 * ReferenceQueue}.
 *
 * @author Bob Lee
 * @since 2.0
 */
@J2ktIncompatible
@GwtIncompatible
public abstract class FinalizableSoftReference<T> extends SoftReference<T>

    private final long timeoutMillis;

    /**
     * Creates a simple circuit breaker with default settings
     *
     * @param name the circuit breaker name
     */
    public SimpleCircuitBreaker(String name) {
        this(name, 5, 3, 30000L); // 5 failures, 3 successes, 30 second timeout
    }

    /**
     * Creates a simple circuit breaker
     *
     * @param name the circuit breaker name

Vemos que precisaremos de algumas dependências usadas em vários lugares da aplicação.

Então, as colocamos em seu próprio módulo de `dependencies` (`app/dependencies.py`).

Agora usaremos uma dependência simples para ler um cabeçalho `X-Token` personalizado:

{* ../../docs_src/bigger_applications/app_an_py310/dependencies.py hl[3,6:8] title["app/dependencies.py"] *}

/// tip | Dica

![Events Diagram](../assets/images/******@****.***)

Here’s a [sample event listener](https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/PrintEventsNonConcurrent.java) that prints each event with a timestamp.

```java
class PrintingEventListener extends EventListener {
  private long callStartNanos;

        // Base body part size (up to and including CreateContextsLength)
        byte[] base = buildCreateBodyNoContexts((byte) 1, (byte) 2, 3, 1000L, 2000L, 3000L, 4000L, 512L, 1024L, 0x20, fileId);

        // Create a simple context entry
        byte[] ctx = new byte[0x40];
        int ci = 0;
        SMBUtil.writeInt4(0, ctx, ci); // Next = 0 (only one)
        ci += 4;
        SMBUtil.writeInt2(0x10, ctx, ci); // NameOffset

    suite.addTest(
        MapTestSuiteBuilder.using(
                new TestMapGenerator<Range<Integer>, String>() {
                  @Override
                  public SampleElements<Entry<Range<Integer>, String>> samples() {
                    return new SampleElements<>(
                        mapEntry(Range.singleton(0), "banana"),
                        mapEntry(Range.closedOpen(3, 5), "frisbee"),