}

    /**
     * Decodes a base64 encoded ID back to the original object name.
     *
     * @param id the encoded ID to decode
     * @return the decoded object name
     */
    protected static String decodeId(final String id) {
        if (id == null) {
            return StringUtil.EMPTY;
        }

      return decode(certificatePem, pkcs8Base64)
    }

    private fun decode(
      certificatePem: String,
      pkcs8Base64Text: String,
    ): HeldCertificate {
      val certificate = certificatePem.decodeCertificatePem()

      val pkcs8Bytes =
        pkcs8Base64Text.decodeBase64()
          ?: throw IllegalArgumentException("failed to decode private key")

    class IntegrationTests {

        @Test
        @DisplayName("Should maintain state after multiple decodes")
        void testMultipleDecodes() throws SMBProtocolDecodingException {
            // First decode
            byte[] buffer1 = createValidCopyChunkResponse(1, 1024, 1024);
            response.decode(buffer1, 0, buffer1.length);
            assertEquals(1, response.getChunksWritten());

    }

    @Test
    @DisplayName("Test decode with valid single entry")
    void testDecodeValidSingleEntry() throws SMBProtocolDecodingException {
        String fileName = "document.pdf";
        int action = FileNotifyInformation.FILE_ACTION_MODIFIED;
        byte[] buffer = createValidNotificationBuffer(fileName, action);

        int bytesRead = notifyInfo.decode(buffer, 0, buffer.length);

        assertTrue(bytesRead > 0);

        }
    }

    /**
     * Decodes a similar document hash from its compressed and encoded form.
     * Reverses the encoding process applied by encodeSimilarDocHash.
     *
     * @param hash the encoded hash string to decode
     * @return the decoded hash string, or the original hash if decoding fails
     */

// out of HTTP "chunked" format before returning it.
// The s3ChunkedReader returns io.EOF when the final 0-length chunk is read.
//
// NewChunkedReader is not needed by normal applications. The http package
// automatically decodes chunking when reading response bodies.
func newSignV4ChunkedReader(req *http.Request, trailer bool) (io.ReadCloser, APIErrorCode) {
	cred, seedSignature, region, seedDate, errCode := calculateSeedSignature(req, trailer)

@J2ktIncompatible
@GwtIncompatible
public abstract class ByteSource {

  /** Constructor for use by subclasses. */
  protected ByteSource() {}

  /**
   * Returns a {@link CharSource} view of this byte source that decodes bytes read from this source
   * as characters using the given {@link Charset}.
   *
   * <p>If {@link CharSource#asByteSource} is called on the returned source with the same charset,

        if (rem == 0) {
            return 0;
        }
        return 8 - rem;
    }

    @Override
    public int decode(final byte[] buffer, final int bufferIndex) throws SMBProtocolDecodingException {
        return decode(buffer, bufferIndex, false);
    }

    /**
     * Decodes the SMB2 message from the buffer.
     *
     * @param buffer the buffer containing the message

    }

    @Test
    @DisplayName("Test decode with owner SID only")
    void testDecodeWithOwnerSidOnly() throws SMBProtocolDecodingException {
        // Prepare buffer with owner SID only
        prepareMinimalSecurityDescriptorBuffer(testBuffer, 0, true, false, false);

        int size = securityDescriptor.decode(testBuffer, 0, testBuffer.length);

        // decode returns 0 when no DACL is present (falls through)

        assertEquals("c", raf.readLine());

        when(raf.read()).thenReturn(-1);
        assertNull(raf.readLine());
    }

    @Test
    @DisplayName("readUTF(): decodes bytes after size prefix")
    void readUTF_decodes() throws Exception {
        SmbRandomAccessFile raf = spy(newInstance("r", false, false, false));
        // Size prefix 3, then bytes for "abc"