may contain optional padding ("=" characters)
Logger name is inferred from the class name.
Logger name is inferred from the class name.
The result contains no padding ("=" characters) so that it can be used as request parameter name.
The result contains no padding ("=" characters) so that it can be used as request parameter name. (Netty POST body decoder prohibits "=" in parameter name.)
See http://en.wikipedia.org/wiki/Base_64#Padding
URL-safe dialect is used: http://netty.io/3.6/api/org/jboss/netty/handler/codec/base64/Base64Dialect.html
If you want to use standard dialect, use the feature in Netty directly.