| Class | Description | 
|---|---|
| Base16 | 
 A Base 16 codec API, which encodes into hex string in upper case. 
 | 
| Base16Codec | 
 A Base 16 codec implementation. 
 | 
| Base16Lower | 
 A Base 16 codec API, which encodes into hex string in lower case. 
 | 
| CodecUtils | 
 Codec internal utilities 
 | 
| SystemSettingUtils | 
 A set of static utility methods for shared code in  
SystemSetting. | 
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