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The JAX-RS specification defines that by default, that a singleton instance of each provider class is instantiated for each JAX-RS application. Apache Wink fully supports this requirement and in addition provides a "Prototype" lifecycle, which is an instance per-request lifecycle.
Prototype means that a new instance of a provider class is instantiated for each request. The @Scope annotation (section‎0) is used on a provider class to specify its lifecycle. The lifecycle of a provider that does not specify the @Scope annotation defaults to the singleton lifecycle.

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