Encode the string uri using percent-encoding to make it
safe for literal use as a full URI.
All characters except uppercase and lowercase letters, digits and
the characters !#$&'()*+,-./:;=?@_~ are percent-encoded. This
is the set of characters specified in in ECMA-262 version 5.1 for
the encodeURI function .
Source
static String encodeFull(String uri) {
return _uriEncode(_encodeFullTable, uri, UTF8, false);
}