System.IO.Compression.DeflateStream.Dispose C# (CSharp) Method

        protected override void Dispose(bool disposing)
        {
            try
            {
                PurgeBuffers(disposing);
            }
            finally
            {
                // Close the underlying stream even if PurgeBuffers threw.
                // Stream.Close() may throw here (may or may not be due to the same error).
                // In this case, we still need to clean up internal resources, hence the inner finally blocks.
                try
                {
                    if (disposing && !_leaveOpen)
                        _stream?.Dispose();
                }
                finally
                {
                    _stream = null;

                    try
                    {
                        _deflater?.Dispose();
                        _inflater?.Dispose();
                    }
                    finally
                    {
                        _deflater = null;
                        _inflater = null;

                        byte[] buffer = _buffer;
                        if (buffer != null)
                        {
                            _buffer = null;
                            if (!AsyncOperationIsActive)
                            {
                                ArrayPool<byte>.Shared.Return(buffer);
                            }
                        }

                        base.Dispose(disposing);
                    }
                }
            }
        }

 protected override void Dispose(bool disposing)
 {
     try {
         base.Dispose(disposing);
     } finally {
         deflateStream.Dispose();
     }
 }