Massimo Caliman
by Massimo Caliman
~1 min read


  • English


  • Java


  • Java
  • Programming Languages
  • SAXParseException
  • XML

Every XML document we work on should be formatted correctly, saved with the right encoding, etc. A classic case is the message “Content is not allowed in prolog” (SAXParseException). Let’s edit the file by hand with a (hexadecimal) editor and remove “ef bb bf” at the top. Since we are using Java much better to put a small work-around of just two lines of code :

Matcher matcher = (Pattern.compile("^([\\W]+)<")).matcher( xmlString.trim() );
xmlString = matcher.replaceFirst("<");

This is before passing it to our SAXBuilder object.

SAXBuilder builder = new SAXBuilder();
Document document = StringReader(xmlString));