ss="block">Returns the property with the given name registered in the current request/response exchange context, or <code>null</code>
 if there is no property by that name.
 <p>
 A property allows a JAX-RS filters and interceptors to exchange additional custom information not already provided by
 this interface.
 </p>
 <p>
 A list of supported properties can be retrieved using <a href="#getPropertyNames()"><code>getPropertyNames()</code></a>. Custom property names should
 follow the same convention as packa