// Arrange
        CIFSContext ctx = mock(CIFSContext.class);
        SmbTreeConnectionTrace trace = new SmbTreeConnectionTrace(ctx);

        // Act & Assert: calling release without prior acquire drops usage below zero
        RuntimeException ex = assertThrows(RuntimeException.class, trace::release);

    }
    return endpoints;
  }

  // NOTE: this should work as long as the delegate graph's implementation of edges() (like that of
  // AbstractGraph) derives its behavior from calling successors().
  private static final class TransposedGraph<N> extends ForwardingGraph<N> {
    private final Graph<N> graph;

    TransposedGraph(Graph<N> graph) {
      this.graph = graph;
    }

    }
    return endpoints;
  }

  // NOTE: this should work as long as the delegate graph's implementation of edges() (like that of
  // AbstractGraph) derives its behavior from calling successors().
  private static final class TransposedGraph<N> extends ForwardingGraph<N> {
    private final Graph<N> graph;

    TransposedGraph(Graph<N> graph) {
      this.graph = graph;
    }

더 자세한 내용은 <a href="https://pyjwt.readthedocs.io/en/latest/installation.html" class="external-link" target="_blank">PyJWT 설치</a> 에서 확인할 수 있습니다.

///

## 패스워드 해싱

"해싱(Hashing)"은 어떤 내용(여기서는 패스워드)을 해석할 수 없는 일련의 바이트 집합(단순 문자열)으로 변환하는 것을 의미합니다.

동일한 내용(똑같은 패스워드)을 해싱하면 동일한 문자열을 얻습니다.

하지만 그 문자열을 다시 패스워드로 되돌릴 수는 없습니다.

### 패스워드를 해싱하는 이유

데이터베이스를 탈취당하더라도, 침입자는 사용자의 평문 패스워드 대신 해시 값만 얻을 수 있습니다.

        | ((source[offset + 3] & 0xFF) << 24);
  }

  /**
   * Indicates that the load and store operations will be very efficient because of use of VarHandle
   * or Unsafe. May be useful for calling code to fall back on an alternative implementation that is
   * slower than those implementations but faster than the pure-Java mask-and-shift.
   */
  static boolean usingFastPath() {
    return byteArray.usesFastPath();

    void testHasMoreElements() {
        // Initially should have more elements if error code is 0
        assertTrue(response.hasMoreElements());

        // After calling nextElement once, isPrimary becomes false but hasMore is still true initially
        response.nextElement();

        // Can still have more elements
        assertTrue(response.hasMoreElements());
    }

    }
    @RetainedLocalRef Object localValue = valueField;
    if (localValue != null & notInstanceOfDelegatingToFuture(localValue)) {
      return getDoneValue(localValue);
    }
    // we delay calling nanoTime until we know we will need to either park or spin
    long endNanos = remainingNanos > 0 ? System.nanoTime() + remainingNanos : 0;
    long_wait_loop:
    if (remainingNanos >= SPIN_THRESHOLD_NANOS) {

  @Deprecated
  public final Comparator<? super R> rowComparator() {
    /*
     * requireNonNull is safe because the factories require non-null Comparators, which they pass on
     * to the backing collections.
     */
    return requireNonNull(rowKeySet().comparator());
  }

  /**
   * Returns the comparator that orders the columns. With natural ordering, {@link
   * Ordering#natural()} is returned.

        return getPackaging().language();
    }

    /**
     * {@return the project POM artifact}, which is the artifact of the POM of this project. Every project have a POM
     * artifact, even if the existence of backing POM file is NOT a requirement (i.e. for some transient projects).
     *
     * @see org.apache.maven.api.services.ArtifactManager#getPath(Artifact)
     */
    @Nonnull
    default ProducedArtifact getPomArtifact() {

   * values.
   *
   * <p>Elements are copied from the argument collection as if by {@code collection.toArray()}.
   * Calling this method is as thread-safe as calling that method.
   *
   * @param collection a collection of {@code Character} objects
   * @return an array containing the same values as {@code collection}, in the same order, converted