Error with GET HTTP Special Characters

I have some problems when making HTTP GETs.

When the page text has a special character, the response becomes distorted.

Example:

os participantes deverão:

when the original text was os participantes deverão .

The code I'm using to do this get is as follows:

        try {
        URL url = new URL("***Url***");
        BufferedReader br = new BufferedReader(new InputStreamReader(url.openStream()));
        String strTemp = "";
        while (null != (strTemp = br.readLine())) {
            System.out.println(strTemp);
        }
    } catch (Exception ex) {
        ex.printStackTrace();
    }

Any idea what might be causing this problem?