How to reliably implement a request timeout for Restlet's Client and ClientResource classes

restlet_request_timeout.groovy

#!/usr/bin/env groovy

@GrabResolver(name="restlet", root="http://maven.restlet.org/")
@Grab(group="org.restlet.jse", module="org.restlet", version="2.0.9")

// request timeouts reliably only with Apache HttpClient
@Grab(group="org.restlet.jse", module="org.restlet.ext.httpclient", version="2.0.9")

import org.restlet.*
import org.restlet.data.*
import org.restlet.representation.*
import org.restlet.resource.*

resource = new ClientResource("http://localhost:3000/")

/* Create a Client with the socketTimout parameter for HttpClient and "attach"
   it to the ClientResource. Of course we could just use the Client
   on its own. */
context = new Context()
context.parameters.add "socketTimeout", "1000"
resource.next = new Client(context, [Protocol.HTTP])

// Set the client to not retry on error. Default is true with 2 attempts.
resource.retryOnError = false 

// Test. Should time out after 1 second.
println "Sending GET request. This should throw an exception after 1 second."
println resource.get()
print resource.response.status