| Class Summary | 
| Base64 | Utility functions for Base64 encoding and decoding. | 
| Base64DecodeInputStream | A filter that decodes input from base64 encoding to binary bytes. | 
| Base64DecodeOutputStream | A filter that decodes output from base64 encoding to binary bytes. | 
| Base64EncodeInputStream | A filter that encodes input from binary bytes to base64 encoding. | 
| Base64EncodeOutputStream | A filter that encodes output from binary bytes to base64 encoding. | 
| FilteredByteInputStream | A stream that produces input by reading from an underlying source
 and optionally transforming the data through a chain of FilterOutputStreams. | 
| FilteredCharInputStream | A stream that produces input by reading from an underlying source,
 optionally transforming the data through a chain of FilterWriters,
 encoding it as bytes and optionally transforming them through
 a chain of FilterOutputStreams. | 
| FormEncodedOutput | A collection of objects used for generating a
 application/x-www-form-urlencoded document. | 
| Hexadecimal | Utility functions for hexadecimal encoding. | 
| InputFilterInputStream | A filter that transforms input data using FilterOutputStream objects. | 
| SteerableOutputStream | A filter that directs output to an underlying stream that can be changed. | 
| StringFilterInputStream | A stream that gets input from a String, and optionally transforms it using filters. | 
| URLEncodedOutputStream | Deprecated. use URLEncodeOutputStream instead. | 
| URLEncodeOutputStream | A filter that URL-encodes bytes that are 'unsafe' in the
 application/x-www-form-urlencoded content type. |