URISyntaxException Illegal character in query

You should not encode the whole URL because the URI class requires a valid protocol. Encode only the parameters

String params = URLEncoder.encode("Type=A Type&Name=1100110&Char=!", "UTF-8");
myUrl = "http://www.example.com/engine/myProcessor.jsp?" + params;

It's because of the whitespace here ...jsp?Type=A Type&..., you can replace it with +

http://www.example.com/engine/myProcessor.jsp?Type=A+Type&Name=1100110&Char=!"