rver endpoints where a URI-template has been used in
 the path-mapping of the <a href="ServerEndpoint.html" title="annotation in jakarta.websocket.server"><code>ServerEndpoint</code></a> annotation. The method parameter may be of type String, any Java
 primitive type or any boxed version thereof. If a client URI matches the URI-template, but the requested path
 parameter cannot be decoded, then the websocket's error handler will be called.

 <p>
 For example:-

 <pre>
 <code>
 &#64;ServerEndpoint("/bookings