import javax.inject.Named;
import javax.inject.Singleton;

import java.io.File;
import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.WeakHashMap;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;

import org.junit.jupiter.api.Test;

/**
 * Security-focused test cases for BufferCache to verify buffer overflow protection.
 */
public class BufferCacheSecurityTest {

    /**
     * Test that buffer allocation validates size to prevent overflow.
     */
    @Test

-dontwarn javax.annotation.**

# Animal Sniffer compileOnly dependency to ensure APIs are compatible with older versions of Java.
-dontwarn org.codehaus.mojo.animal_sniffer.*

# OkHttp platform used only on JVM and when Conscrypt and other security providers are available.
# May be used with robolectric or deliberate use of Bouncy Castle on Android
-dontwarn okhttp3.internal.platform.**
-dontwarn org.conscrypt.**

    /**
     * Sent by the server to indicate that the server and client are
     * on the same machine. This implies that the server will include
     * a local security context handle in the Type 2 message, for
     * use in local authentication.
     */
    int NTLMSSP_NEGOTIATE_LOCAL_CALL = 0x00004000;

    /**
     * Indicates that authenticated communication between the client

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.crypto;

import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.security.Key;
import java.security.NoSuchAlgorithmException;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;

      - labeler
    permissions:
      pull-requests: read
    runs-on: ubuntu-latest
    steps:
      - uses: docker://agilepathway/pull-request-label-checker:latest
        with:
          one_of: breaking,security,feature,bug,refactor,upgrade,docs,lang-all,internal

# SHA256 checksums of snapshot zip files in this directory.
# These checksums are included in the FIPS security policy
# (validation instructions sent to the lab) and MUST NOT CHANGE.
# That is, the zip files themselves must not change.
#
# It is okay to add new zip files to the list, and it is okay to
# remove zip files from the list when they are removed from
# this directory. To update this file:
#
#	go test cmd/go/internal/fips140 -update
#

import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import java.security.SecureRandom;
import java.util.stream.Stream;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;

    public String username;

    /** The password. */
    @NotBlank
    public String password;

    /** The confirm password. */
    @NotBlank
    public String confirmPassword;

    /**
     * Clears security information.
     */
    public void clearSecurityInfo() {
        password = null;
        confirmPassword = null;
    }

レスポンスのトークンエンドポイントで使用するPydanticモデルを定義します。

新しいアクセストークンを生成するユーティリティ関数を作成します。

{* ../../docs_src/security/tutorial004.py hl[6,12:14,28:30,78:86] *}

## 依存関係の更新

`get_current_user`を更新して、先ほどと同じトークンを受け取るようにしますが、今回はJWTトークンを使用します。

受け取ったトークンを復号して検証し、現在のユーザーを返します。

トークンが無効な場合は、すぐにHTTPエラーを返します。

{* ../../docs_src/security/tutorial004.py hl[89:106] *}

## `/token` パスオペレーションの更新

トークンの有効期限を表す`timedelta`を作成します。