expiresInt, err := strconv.ParseInt(expires, 10, 64)
	if err != nil {
		return ErrMalformedExpires
	}

	// Check if the presigned URL has expired.
	if expiresInt < UTCNow().Unix() {
		return ErrExpiredPresignRequest
	}

	encodedResource, err = getResource(encodedResource, r.Host, globalDomainNames)
	if err != nil {
		return ErrInvalidRequest
	}

										assignment.Value = curTime.UnixNano()
									case schema.UnixMillisecond:
										assignment.Value = curTime.UnixMilli()
									case schema.UnixSecond:
										assignment.Value = curTime.Unix()
									}

									onConflict.DoUpdates = append(onConflict.DoUpdates, assignment)
								} else {
									columns = append(columns, column.Name)
								}
							}
						}
					}
				}

	defer l.getMutex()()

	var readers, writers int32
	for k, lris := range l.lockMap {
		modified := false
		for i := 0; i < len(lris); {
			lri := &lris[i]
			if time.Since(time.Unix(0, lri.TimeLastRefresh)) > interval {
				delete(l.lockUID, formatUUID(lri.UID, lri.idx))
				if len(lris) == 1 {
					// Remove the write lock.
					delete(l.lockMap, lri.Name)
					modified = false
					break

        // Create a file that exists but will cause an IOException when read
        File lmhostsFile = tempDir.resolve("lmhosts").toFile();
        lmhostsFile.createNewFile();

        // Make file unreadable on Unix-like systems
        boolean isWindows = System.getProperty("os.name").toLowerCase().contains("windows");
        if (!isWindows) {
            assertTrue(lmhostsFile.setReadable(false));
        }

This practice is common enough that it has a name, these environment variables are commonly placed in a file `.env`, and the file is called a "dotenv".

/// tip

A file starting with a dot (`.`) is a hidden file in Unix-like systems, like Linux and macOS.

But a dotenv file doesn't really have to have that exact filename.

///

		oi1.ModTime.Unix() > oi2.LastModified.Unix() && oi1.VersionID == nullVersionID {
		return replicateNone
	}
	sz, _ := oi1.GetActualSize()

	// needs full replication
	if oi1.ETag != oi2.ETag ||
		oi1.VersionID != oi2.VersionID ||
		sz != oi2.Size ||
		oi1.DeleteMarker != oi2.IsDeleteMarker ||
		oi1.ModTime.Unix() != oi2.LastModified.Unix() {
		return replicateAll
	}

        assertEquals(0, fileBothDirectoryInfo.getNextEntryOffset());
        assertEquals(0, fileBothDirectoryInfo.getFileIndex());
        // For time fields, 0 in the wire format means Jan 1, 1601, which is negative in Unix epoch
        assertTrue(fileBothDirectoryInfo.createTime() < 0);
        assertTrue(fileBothDirectoryInfo.lastAccess() < 0);
        assertTrue(fileBothDirectoryInfo.lastModified() < 0);

  @J2ObjCIncompatible
  public static File createTempDir() {
    return TempFileCreator.INSTANCE.createTempDir();
  }

  /**
   * Creates an empty file or updates the last updated timestamp on the same as the unix command of
   * the same name.
   *
   * @param file the file to create or update
   * @throws IOException if an I/O error occurs
   */
  @SuppressWarnings("GoodTime") // reading system time without TimeSource

/// tip | Dica

Um arquivo começando com um ponto (`.`) é um arquivo oculto em sistemas tipo Unix, como Linux e macOS.

Mas um arquivo dotenv não precisa ter exatamente esse nome de arquivo.

///

/// tip | Consejo

Un archivo que comienza con un punto (`.`) es un archivo oculto en sistemas tipo Unix, como Linux y macOS.

Pero un archivo dotenv realmente no tiene que tener ese nombre exacto.

///