# Package org.apache.coyote.http11.upgrade

- Interface Summary
  Interface | Description
  --- | ---
  InternalHttpUpgradeHandler | This Tomcat specific interface is implemented by handlers that require direct access to Tomcat's I/O layer rather than going through the Servlet API.

- Class Summary
  Class | Description
  --- | ---
  UpgradeProcessorBase |
  UpgradeProcessorExternal |
  UpgradeProcessorInternal |
  UpgradeServletInputStream |
  UpgradeServletOutputStream |

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