in = new BufferedInputStream(new FileInputStream(fullFileName));
in = dataSource.open();
	private void loadFileData() throws IOException {		if (data != null)			return;		InputStream in = null;		try {			in = new BufferedInputStream(new FileInputStream(fullFileName));			ByteArrayOutputStream out = new ByteArrayOutputStream();			addLineOffset(0); // Line 0 starts at offset 0			LineNumberMapBuilder mapBuilder = new LineNumberMapBuilder(this);			// Copy all of the data from the file into the byte array output stream			byte[] buf = new byte[1024];			int n;			while ((n = in.read(buf)) >= 0) {				mapBuilder.addData(buf, n);				out.write(buf, 0, n);			}			mapBuilder.eof();			setData(out.toByteArray());		} finally {			if (in != null)				in.close();		}	}