}

    /**
     * Opens a connection to the GCS URL.
     *
     * @param u The URL to open a connection to
     * @return A new GcsURLConnection instance
     * @throws IOException If the connection cannot be opened
     */
    @Override
    protected URLConnection openConnection(final URL u) throws IOException {
        return new GcsURLConnection(u);
    }

    /**

    }

    /**
     * Opens a connection to the S3 URL.
     *
     * @param u The URL to open a connection to
     * @return A new S3URLConnection instance
     * @throws IOException If the connection cannot be opened
     */
    @Override
    protected URLConnection openConnection(final URL u) throws IOException {
        return new S3URLConnection(u);
    }

    /**

     * @param preauthIntegrityHash
     *            the pre-authentication integrity hash (for SMB 3.1.1)
     * @throws GeneralSecurityException
     *             if the signing algorithm cannot be initialized
     *
     */
    public Smb2SigningDigest(final byte[] sessionKey, final int dialect, final byte[] preauthIntegrityHash)
            throws GeneralSecurityException {
        switch (dialect) {

          notices within Derivative Works that You distribute, alongside
          or as an addendum to the NOTICE text from the Work, provided
          that such additional attribution notices cannot be construed
          as modifying the License.

      You may add Your own copyright statement to Your modifications and
      may provide additional or different license terms and conditions

          notices within Derivative Works that You distribute, alongside
          or as an addendum to the NOTICE text from the Work, provided
          that such additional attribution notices cannot be construed
          as modifying the License.

      You may add Your own copyright statement to Your modifications and
      may provide additional or different license terms and conditions

          notices within Derivative Works that You distribute, alongside
          or as an addendum to the NOTICE text from the Work, provided
          that such additional attribution notices cannot be construed
          as modifying the License.

      You may add Your own copyright statement to Your modifications and
      may provide additional or different license terms and conditions

          notices within Derivative Works that You distribute, alongside
          or as an addendum to the NOTICE text from the Work, provided
          that such additional attribution notices cannot be construed
          as modifying the License.

      You may add Your own copyright statement to Your modifications and
      may provide additional or different license terms and conditions

          notices within Derivative Works that You distribute, alongside
          or as an addendum to the NOTICE text from the Work, provided
          that such additional attribution notices cannot be construed
          as modifying the License.

      You may add Your own copyright statement to Your modifications and
      may provide additional or different license terms and conditions

          notices within Derivative Works that You distribute, alongside
          or as an addendum to the NOTICE text from the Work, provided
          that such additional attribution notices cannot be construed
          as modifying the License.

      You may add Your own copyright statement to Your modifications and
      may provide additional or different license terms and conditions

          notices within Derivative Works that You distribute, alongside
          or as an addendum to the NOTICE text from the Work, provided
          that such additional attribution notices cannot be construed
          as modifying the License.

      You may add Your own copyright statement to Your modifications and
      may provide additional or different license terms and conditions