| 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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