| Package | Description | 
|---|---|
| jakarta.servlet.http | 
 The jakarta.servlet.http package contains a number of classes and interfaces that describe and define the contracts between a servlet class running under the HTTP protocol and the runtime environment provided for an instance of such a class by a conforming servlet container. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
<T extends HttpUpgradeHandler> | 
HttpServletRequestWrapper.upgrade(Class<T> handlerClass)
Create an instance of  
HttpUpgradeHandler for a given class and uses it for the http protocol upgrade
 processing. | 
<T extends HttpUpgradeHandler> | 
HttpServletRequest.upgrade(Class<T> handlerClass)
Creates an instance of  
HttpUpgradeHandler for a given class and uses it for the http protocol upgrade
 processing. | 
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