Servlet Displaying Quotation Marks as Non-Printable Characters

Question

I have a servlet which is reading an HTML file and displaying it's contents. My problem is that, in the output, quotation marks in the source html (" and ') are being reproduced as non-printable characters (). Furthermore, the same servlet prints the quotation marks fine under the Linux OS and Apache Web Server, but does not under the Windows (2000) OS and IIS Web Server (running j2sdk-1_3_0_02-win). Any suggestions would be appreciated. Code in question is below. "str" is the line from the file. :
     FileReader freader = new FileReader (filePath);
     BufferedReader breader = new BufferedReader(freader);
     String str = null;
     while ((str = breader.readLine()) != null) {
     document = document + str + "\n";
     freader.close();

Answer 1

Technically, you don't need to add the "\n" in there anyway. Newlines mean nothing to an HTML file if all you're doing is displaying that file. The lack of a carriage return, when the HTML is parsed, is completely irrelevant.
Also, when handling large String concatenations, it's always going to be more efficient to use StringBuffer.
StringBuffer sbDocument = new StringBuffer();
while((str = breader.readLine()) != null)
   sb.append(str);
String document = sbDocument.toString()