sink: MutableCollection<in T>,
      maxElements: Int,
    ) = error("unsupported")
  }

  /** Returns true if no tasks have been scheduled. This runs the coordinator for confirmation. */
  fun isIdle() = taskRunner.activeQueues().isEmpty()

  override fun close() {
    tasksExecutor.shutdownNow()
  }

  companion object {
    var instance = 0
  }

		logger.Fatal(err, "Failed to connect to KMS")
	}
	GlobalKMS = KMS
}

func getTLSConfig() (x509Certs []*x509.Certificate, manager *certs.Manager, secureConn bool, err error) {
	if !isFile(getPublicCertFile()) || !isFile(getPrivateKeyFile()) {
		return nil, nil, false, nil
	}

	if x509Certs, err = config.ParsePublicCertFile(getPublicCertFile()); err != nil {
		return nil, nil, false, err
	}

        void testFileTypeChecks() throws CIFSException {
            // Given
            when(mockResource.isFile()).thenReturn(true);
            when(mockResource.isDirectory()).thenReturn(false);
            when(mockResource.isHidden()).thenReturn(false);

            // When
            boolean isFile = mockResource.isFile();
            boolean isDirectory = mockResource.isDirectory();

            userSettingsFile = new File(commandLine.getOptionValue(CLIManager.ALTERNATE_USER_SETTINGS));
            userSettingsFile = resolveFile(userSettingsFile, workingDirectory);

            if (!userSettingsFile.isFile()) {
                throw new FileNotFoundException("The specified user settings file does not exist: " + userSettingsFile);
            }
        } else {
            userSettingsFile = DEFAULT_USER_SETTINGS_FILE;

        String path = getPathForLocalArtifact(request.getArtifact());
        File file = new File(getRepository().getBasedir(), path);

        LocalArtifactResult result = new LocalArtifactResult(request);
        if (file.isFile()) {
            result.setFile(file);
            result.setAvailable(true);
        }

        return result;
    }

    @Override

    File asciiFile = getTestFile("ascii.txt");
    File dir = asciiFile.getParentFile();
    assertTrue(Files.isDirectory().apply(dir));
    assertFalse(Files.isFile().apply(dir));

    assertFalse(Files.isDirectory().apply(asciiFile));
    assertTrue(Files.isFile().apply(asciiFile));
  }

  /** Returns a root path for the file system. */
  private static File root() {
    return File.listRoots()[0];
  }

   * either it has exceeded the keep alive limit or the idle connections limit.
   *
   * Returns the duration in nanoseconds to sleep until the next scheduled call to this method.
   * Returns -1 if no further cleanups are required.
   */
  fun closeConnections(now: Long): Long {
    // Find the longest-idle connections in 2 categories:
    //

    }

    @Override
    public Optional<Long> sizeIfKnown() {
      if (file.isFile()) {
        return Optional.of(file.length());
      } else {
        return Optional.absent();
      }
    }

    @Override
    public long size() throws IOException {
      if (!file.isFile()) {
        throw new FileNotFoundException(file.toString());
      }
      return file.length();
    }

        }

        @Test
        void testIsFile() throws SmbException {
            // Arrange
            doReturn(true).when(smbFile).isFile();

            // Act & Assert
            assertTrue(smbFile.isFile());
        }

        @Test
        void testCanRead() throws SmbException {
            // Arrange
            doReturn(false).when(smbFile).isDirectory();

                log.debug("Error checking connection idle time: {}", e.getMessage());
            }
        }

        // Remove at most half of the idle connections
        int toRemoveCount = Math.min(idle.size(), Math.max(1, idle.size() / 2));
        for (int i = 0; i < toRemoveCount; i++) {
            SmbTransportImpl transport = idle.get(i);
            if (connections.remove(transport)) {