| Class | Description | 
|---|---|
| Base64 | Provide implementations of the Base64 conversion methods from Commons Codec, delegating to the Java Base64
 implementation. | 
| ByteArrayBuilder | Builder class for sequences of bytes. | 
| DateUtils | A utility class for parsing and formatting HTTP dates as used in cookies and
 other headers. | 
| DnsUtils | A collection of utilities relating to Domain Name System. | 
| Hex | |
| URIUtils | A collection of utilities for  URIs, to workaround
 bugs within the class or for ease-of-use features. | 
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