# Package org.apache.tapestry5.http.internal

- Interface Summary
  Interface | Description
  --- | ---
  AsyncRequestService | Service that handles Tapestry's support for asynchronous Servlet API requests.

- Class Summary
  Class | Description
  --- | ---
  AbstractContributionDef | Partially implements `ContributionDef`, providing empty implementations of the three contribute() methods.
  ServletContextSymbolProvider | A wrapper around `ServletContext` that makes init-parameters accessible as symbols.
  SingleKeySymbolProvider | Implementation of `SymbolProvider` that only supports a single key/value pair.
  SyntheticModuleDef | A synthetic module definition, used to mix in some additional "pre-built" service configuration contributions.
  SyntheticSymbolSourceContributionDef | Makes a contribution to the SymbolSource service configuration.
  TapestryAppInitializer | This class is used to build the `Registry`.
  TapestryHttpInternalConstants |
  TapestryHttpInternalSymbols |
  TypeCoercerHttpRequestBodyConverter |