| Package | Description | 
|---|---|
| io.netty.handler.codec.http | Encoder, decoder and their related message types for HTTP. | 
| io.netty.handler.codec.http2 | Handlers for sending and receiving HTTP/2 frames. | 
| Constructor and Description | 
|---|
| HttpServerUpgradeHandler(HttpServerUpgradeHandler.SourceCodec sourceCodec,
                        Collection<HttpServerUpgradeHandler.UpgradeCodec> upgradeCodecs,
                        int maxContentLength)Constructs the upgrader with the supported codecs. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | Http2ServerUpgradeCodecServer-side codec for performing a cleartext upgrade from HTTP/1.x to HTTP/2. | 
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