What does the message “Invalid byte 2 of a 3-byte UTF-8 sequence” mean?

Question

I changed a file in Orbeon Forms, and the next time I load the page, I get an error message saying Invalid byte 2 of a 3-byte UTF-8 sequence. How can I solve this p

Answer 1

Had same problem.

Problem > I'm getting X509 certificate values (multiple encoding source) to generate a PDF report. The PDF is generated throught a webservice that waits for an UTF-8 xml request and I've to reencode the values before marshalling.

Solution > http://fabioangelini.wordpress.com/2011/08/04/converting-java-string-fromto-utf-8/

Using this class:

public class StringHelper {

// convert from UTF-8 -> internal Java String format
public static String convertFromUTF8(String s) {
    String out = null;
    try {
        out = new String(s.getBytes("ISO-8859-1"), "UTF-8");
    } catch (java.io.UnsupportedEncodingException e) {
        return null;
    }
    return out;
}

// convert from internal Java String format -> UTF-8
public static String convertToUTF8(String s) {
    String out = null;
    try {
        out = new String(s.getBytes("UTF-8"), "ISO-8859-1");
    } catch (java.io.UnsupportedEncodingException e) {
        return null;
    }
    return out;
}
}

Usage:

//getSummaryAttMap() returns a HashMap
String value = (String) getSummaryAttMap().get(key);
if(value != null)
value = StringHelper.convertToUTF8(value);
else
value = "";