Import the modules installed.

Create a random secret key that will be used to sign the JWT tokens.

To generate a secure random secret key use the command:

<div class="termy">

```console
$ openssl rand -hex 32

09d25e094faa6ca2556c818166b7a9563b93f7099f6f0f4caa6cf63b88e8d3e7
```

</div>

And copy the output to the variable `SECRET_KEY` (don't use the one in the example).

// so for now it only builds on platforms that support that system call.
// TODO(#33974): use a more portable library for file locking.

//go:build darwin || dragonfly || freebsd || illumos || linux || netbsd || openbsd

// This program can be used as go_android_GOARCH_exec by the Go tool.
// It executes binaries on an android device using adb.
package main

import (
	"bytes"
	"errors"
	"fmt"
	"io"
	"log"
	"os"

///

## 处理 JWT 令牌

导入已安装的模块。

创建用于 JWT 令牌签名的随机密钥。

使用以下命令，生成安全的随机密钥：

<div class="termy">

```console
$ openssl rand -hex 32

09d25e094faa6ca2556c818166b7a9563b93f7099f6f0f4caa6cf63b88e8d3e7
```

</div>

然后，把生成的密钥复制到变量**SECRET_KEY**，注意，不要使用本例所示的密钥。

创建指定 JWT 令牌签名算法的变量 **ALGORITHM**，本例中的值为 `"HS256"`。

   * the same way.
   */
  public CharSource asCharSource(Charset charset) {
    return new AsCharSource(charset);
  }

  /**
   * Opens a new {@link InputStream} for reading from this source. This method returns a new,
   * independent stream each time it is called.
   *
   * <p>The caller is responsible for ensuring that the returned stream is closed.
   *

            // remove whitespaces at the end
            expectedChecksum = expectedChecksum.trim();

            // check for 'ALGO (name) = CHECKSUM' like used by openssl
            if (expectedChecksum.regionMatches(true, 0, "MD", 0, 2)
                    || expectedChecksum.regionMatches(true, 0, "SHA", 0, 3)) {
                int lastSpacePos = expectedChecksum.lastIndexOf(' ');

///

## JWT 토큰 처리

설치된 모듈을 임포트 합니다.

JWT 토큰 서명에 사용될 임의의 비밀키를 생성합니다.

안전한 임의의 비밀키를 생성하려면 다음 명령어를 사용하십시오:

<div class="termy">

```console
$ openssl rand -hex 32

09d25e094faa6ca2556c818166b7a9563b93f7099f6f0f4caa6cf63b88e8d3e7
```

</div>

그리고 생성한 비밀키를 복사해 변수 `SECRET_KEY`에 대입합니다. (이 예제의 변수 값을 그대로 사용하지 마십시오.)

                }
            }
        };
        if (threadPool != null) {
            threadPool.execute(task);
        } else {
            task.run();
        }
    }

    /**
     * Opens a connection to the specified URL.
     *
     * @param u the URL
     * @return the HttpURLConnection
     * @throws IOException if an I/O exception occurs
     */

        assertTrue(ex2.getMessage().contains("Already closed"));
    }

    @Test
    @DisplayName("ensureOpen opens SMB2 via UNC path and marks open")
    void ensureOpen_smb2_opens() throws Exception {
        // Arrange
        SmbPipeHandleImpl handle = newHandleWithBasicStubs(0, "\\\\pipe\\\\foo");

            this.retval = _src.dec_ndr_long();
        }
    }

    /**
     * SAMR Connect2 operation for establishing a connection to the SAM database.
     * This operation opens the SAM database on a remote server.
     */
    public static class SamrConnect2 extends DcerpcMessage {

        @Override
        public int getOpnum() {
            return 0x39;
        }

            retval = _src.dec_ndr_long();
        }
    }

    /**
     * SAMR Connect2 operation for establishing a connection to the SAM database.
     * This operation opens the SAM database on a remote server.
     */
    public static class SamrConnect2 extends DcerpcMessage {

        @Override
        public int getOpnum() {
            return 0x39;
        }