import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.PriorityBlockingQueue;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.TimeUnit;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Tests for {@link Queues}.
 *
 * @author Dimitris Andreou
 */
@NullUnmarked

- Implement `post-filter` extension point for scheduling framework ([#78097](https://github.com/kubernetes/kubernetes/pull/78097), [@draveness](https://github.com/draveness))
- Add Bind extension point of the scheduling framework ([#78513](https://github.com/kubernetes/kubernetes/pull/78513), [@chenchun](https://github.com/chenchun))

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unittests for {@link CycleDetectingLockFactory}.
 *
 * @author Darick Tong
 */
@NullUnmarked

import com.google.common.testing.NullPointerTester;
import com.google.common.testing.SerializableTester;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * Tests for {@link Functions}.
 *
 * @author Mike Bostock
 * @author Vlad Patryshev
 */
@GwtCompatible

import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.NavigableSet;
import java.util.NoSuchElementException;
import java.util.Set;
import java.util.SortedSet;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Class that contains nested abstract tests for filtered collection views, along with their
 * implementation helpers.
 *
 * @author Louis Wasserman

* Data validation
* API annotation and automatic documentation

And you only have to declare them once.

* Validación de datos
* Anotación de API y documentación automática

Y solo tienes que declararlos una vez.

import static org.junit.Assert.assertThrows;

import com.google.common.base.Suppliers;
import com.google.common.cache.LocalCache.Strength;
import com.google.common.testing.EqualsTester;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests CacheBuilderSpec. TODO(user): tests of a few invalid input conditions, boundary
 * conditions.
 *
 * @author Adam Winer
 */
@NullUnmarked

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * {@link LoadingCache} tests that deal with caches that actually contain some key-value mappings.
 *
 * @author mike nonemacher
 */

@NullUnmarked

## Zusammenfassung { #recap }

Mit dem, was Sie bis hier gesehen haben, können Sie eine sichere **FastAPI**-Anwendung mithilfe von Standards wie OAuth2 und JWT einrichten.

In fast jedem Framework wird die Handhabung der Sicherheit recht schnell zu einem ziemlich komplexen Thema.