import java.lang.reflect.UndeclaredThrowableException;
import java.nio.ByteBuffer;
import java.util.zip.Checksum;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * {@link HashFunction} adapter for {@link Checksum} instances.
 *
 * @author Colin Decker
 */
@Immutable
@ElementTypesAreNonnullByDefault
final class ChecksumHashFunction extends AbstractHashFunction implements Serializable {

ideally referring to a person with the responsibility to complete the note.

If your CL addresses an accepted proposal, mention the proposal issue number in
your release note in the form `/issue/NUMBER`. A link to the issue in the text
will have this form (see below). If you don't want to mention the issue in the
text, add it as a comment:
```
<!-- go.dev/issue/12345 -->
```

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>

    <link rel="icon" type="image/png" href="https://oss.sonatype.org/favicon.png">
    <!--[if IE]>
    <link rel="SHORTCUT ICON" href="https://oss.sonatype.org/favicon.ico"/>
    <![endif]-->

///

### 尝试带有依赖项的 WebSockets

如果您的文件名为 `main.py`，请使用以下命令运行应用程序：

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

在浏览器中打开 <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>。

   > "/${TARGET}/usr/lib64/libstdc++.so.${LIBSTDCXX_VERSION}"
cp "./x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++_nonshared44.a" \
   "/${TARGET}/usr/lib64"
;;
esac

# Link in architecture specific includes from the system; note that we cannot
# link in the whole x86_64-linux-gnu folder, as otherwise we're overlaying
# system gcc paths that we do not want to find.
# TODO(klimek): Automate linking in all non-gcc / non-kernel include

{!../../docs_src/app_testing/tutorial002.py!}
```

/// note | "Nota"

Para mais detalhes, confira a documentação do Starlette para <a href="https://www.starlette.io/testclient/#testing-websocket-sessions" class="external-link" target="_blank">testar WebSockets</a>.

If you want to play with JWT tokens and see how they work, check <a href="https://jwt.io/" class="external-link" target="_blank">https://jwt.io</a>.

## Install `PyJWT`

We need to install `PyJWT` to generate and verify the JWT tokens in Python.

Make sure you create a [virtual environment](../../virtual-environments.md){.internal-link target=_blank}, activate it, and then install `pyjwt`:

<div class="termy">

```console

import java.util.Collection;
import java.util.Iterator;
import java.util.Queue;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link Synchronized#queue} and {@link Queues#synchronizedQueue}.
 *
 * @author Kurt Alfred Kluever
 */
public class SynchronizedQueueTest extends TestCase {

  protected Queue<String> create() {

    /**
     * このインスタンスが扱うクラスを探して {@link ClassHandler#processClass(String, String) ハンドラ}
     * をコールバックします。
     * <p>
     * インスタンス構築時にルートパッケージが指定されている場合は、 ルートパッケージ以下のクラスのみが対象となります。
     * </p>
     *
     * @param handler
     *            クラスを処理するハンドラ
     */
    void forEach(ClassHandler handler);

    /**
     * このインスタンスが扱うリソースを探して

import java.io.Serializable;
import java.nio.ByteBuffer;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;

/**
 * {@link HashFunction} adapter for {@link MessageDigest} instances.
 *
 * @author Kevin Bourrillion
 * @author Dimitris Andreou
 */
@Immutable
@ElementTypesAreNonnullByDefault