| Class | Description | 
|---|---|
| ByteRangeInputStream | To support HTTP byte streams, a new connection to an HTTP server needs to be
 created each time. | 
| ByteRangeInputStream.URLOpener | This class wraps a URL and provides method to open connection. | 
| JsonUtilClient | Utility methods used in WebHDFS/HttpFS JSON conversion. | 
| KerberosUgiAuthenticator | Use UserGroupInformation as a fallback authenticator
 if the server does not use Kerberos SPNEGO HTTP authentication. | 
| SSLConnectionConfigurator | Configure a connection to use SSL authentication. | 
| SWebHdfsFileSystem | |
| WebHdfsFileSystem | A FileSystem for HDFS over the web. | 
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