* for information on the behaviour of the algorithm.
 *
 * <p>On Intel Core2 2.66, on 1000 bytes, fingerprint2011 takes 0.9 microseconds compared to
 * fingerprint at 4.0 microseconds and md5 at 4.5 microseconds.
 *
 * <p>Note to maintainers: This implementation relies on signed arithmetic being bit-wise equivalent
 * to unsigned arithmetic in all cases except:
 *
 * <ul>
 *   <li>comparisons (signed values can be negative)

        assertNotNull(buffer2, "Reused buffer should not be null");
        assertEquals(SmbComTransaction.TRANSACTION_BUF_SIZE, buffer2.length, "Reused buffer should have correct size");

        // Note: We don't check if content is cleared as that's not a security requirement
        // The important part is that the buffer is valid and has correct size
    }

    /**

        }).when(smbFile).send(any(SmbComReadAndX.class), any(SmbComReadAndXResponse.class));

        smbRandomAccessFile.readFully(buffer);
        assertArrayEquals(new byte[] { 10, 20, 30, 40, 50 }, buffer);
        // Note: There appears to be a bug in the implementation where readFully
        // incorrectly updates the file pointer twice
        assertEquals(10, smbRandomAccessFile.getFilePointer());
    }

     * In the case of Java tools, the map may also contain {@code --patch-module} options, which are
     * {@linkplain org.apache.maven.api.JavaPathType#patchModule(String) handled in a special way}.
     *
     * <h4>Design note</h4>
     * All types of path are determined together because they are sometime mutually exclusive.
     * For example, an artifact of type {@value org.apache.maven.api.Type#JAR} can be placed

  done
  set -u
  echo '==TFCI==: Evaluated the following TFCI variables from $TFCI:'
  export -p | grep TFCI

  # Load those stored pre-existing TFCI_ vars, if any
  if [[ -s "$FROM_ENV" ]]; then
    echo '==TFCI==: NOTE: Loading the following env parameters, which were'
    echo 'already set in the shell environment. If you want to disable this'
    echo 'behavior, create a new shell.'
    cat "$FROM_ENV"
    source "$FROM_ENV"

  }

  /**
   * Returns the empty immutable set. Preferred over {@link Collections#emptySet} for code
   * consistency, and because the return type conveys the immutability guarantee.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings({"unchecked"}) // fully variant implementation (never actually produces any Es)
  public static <E> ImmutableSet<E> of() {

`Response`를 직접 반환할 때에도 헤더를 추가할 수 있습니다.

[응답을 직접 반환하기](response-directly.md){.internal-link target=_blank}에서 설명한 대로 응답을 생성하고, 헤더를 추가 매개변수로 전달하세요.

{* ../../docs_src/response_headers/tutorial001.py hl[10:12] *}

/// note | 기술적 세부사항

`from starlette.responses import Response`나 `from starlette.responses import JSONResponse`를 사용할 수도 있습니다.

**FastAPI**는 `starlette.responses`를 `fastapi.responses`로 개발자의 편의를 위해 직접 제공하지만, 대부분의 응답은 Starlette에서 직접 제공됩니다.

     */
    requireNonNull(futures);

    // Corner case: List is empty.
    if (futures.isEmpty()) {
      handleAllCompleted();
      return;
    }

    // NOTE: If we ever want to use a custom executor here, have a look at CombinedFuture as we'll
    // need to handle RejectedExecutionException

    if (allMustSucceed) {

            return text.substring(prefix.length());
        }
        return text;
    }

    /**
     * Decapitalizes a string according to JavaBeans conventions.
     * Note: If the first two characters are uppercase, the string will not be decapitalized.
     * <p>
     * Usage example:
     * </p>
     *
     * <pre>
     * StringUtil.decapitalize("UserId")  = "userId"

사용자로부터 받은 패스워드를 해싱하는 유틸리티 함수를 생성합니다.

그리고 받은 패스워드가 저장된 해시와 일치하는지 검증하는 또 다른 유틸리티 함수도 생성합니다.

그리고 사용자를 인증하고 반환하는 또 다른 함수도 생성합니다.

{* ../../docs_src/security/tutorial004_an_py310.py hl[8,49,56:57,60:61,70:76] *}

/// note

새로운 (가짜) 데이터베이스 `fake_users_db`를 확인하면, 해시 처리된 패스워드가 어떻게 생겼는지 볼 수 있습니다: `"$2b$12$EixZaYVK1fsbw1ZfbX3OXePaWxn96p36WQoeG6Lruj3vjPGga31lW"`.

///

## JWT 토큰 처리

설치된 모듈을 임포트 합니다.