Dealing with encoding

http://stackoverflow.com/questions/15545720/how-to-fix-invalid-byte-1-of-1-byte-utf-8-sequence
https://www.mkyong.com/java/sax-error-malformedbytesequenceexception-invalid-byte-1-of-1-byte-utf-8-sequence/

https://www.joelonsoftware.com/2003/10/08/the-absolute-minimum-every-software-developer-absolutely-positively-must-know-about-unicode-and-character-sets-no-excuses/