public String buildMessageString(SAXParseException ex) {
    String msg = "(" + ex.getLineNumber() + ":" + ex.getColumnNumber() + ") " + ex.getMessage();
    final VirtualFile file = getProblemFile(ex);

    if ( file != null && !file.equals(myFile.getVirtualFile())) {
      msg = file.getName() + ":" + msg;
    }
    return msg;
  }
public String buildMessageString(SAXParseException ex)