Trying to set ContextHandler for Jetty Camel component

SimpleJetty.java

package foo.examples;

import org.apache.camel.CamelContext;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.camel.impl.SimpleRegistry;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.model.rest.RestBindingMode;

import org.eclipse.jetty.server.handler.ContextHandler;
import org.eclipse.jetty.server.handler.ResourceHandler;
import org.eclipse.jetty.util.resource.Resource;

import java.io.File;
import java.io.IOException;

public class SimpleJetty {

    public static void main(String[] args) throws Exception {

        SimpleRegistry registry = new SimpleRegistry();
        registry.put("contextHandler", getContextHandler());

        final CamelContext camelContext = new DefaultCamelContext(registry);
        camelContext.addRoutes(new RouteBuilder() {
            @Override
            public void configure() throws Exception {

                from("jetty://http://0.0.0.0:8080/n/test?handlers=contextHandler")
                        .log("Testing Jetty")
                        .transform().constant("Jetty Running\n");

                restConfiguration().component("jetty").host("0.0.0.0").port(8080)
                        .bindingMode(RestBindingMode.off);

                rest("/r/ping").get().route()
                        .log("Testing REST")
                        .transform().constant("REST Service Running\n");
            }
        });

        camelContext.start();

        while (true) {
            Thread.sleep(1000);
        }
    }

    private static ContextHandler getContextHandler() throws IOException {
        ContextHandler context = new ContextHandler();
        context.setContextPath("/");
        ResourceHandler rh = new ResourceHandler();
        File dir = new File("/tmp/content");
        assert dir.exists();
        rh.setBaseResource(Resource.newResource(dir));
        context.setHandler(rh);
        return context;
    }

}

Trying to work out why this doesn't work.
Static content is not served.

package foo.examples;

import org.apache.camel.CamelContext;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.camel.impl.SimpleRegistry;
import org.apache.camel.model.rest.RestBindingMode;
import org.eclipse.jetty.server.handler.ContextHandler;
import org.eclipse.jetty.server.handler.ResourceHandler;
import org.eclipse.jetty.util.resource.Resource;

import java.io.File;
import java.io.IOException;

public class SimpleJetty {

public static void main(String[] args) throws Exception {

    SimpleRegistry registry = new SimpleRegistry();
    registry.put("contextHandler", getContextHandler());

    final CamelContext camelContext = new DefaultCamelContext(registry);
    camelContext.addRoutes(new RouteBuilder() {
        @Override
        public void configure() throws Exception {

            from("jetty://http://0.0.0.0:8080/n/test?handlers=#contextHandler")
                    .log("Testing Jetty");

            restConfiguration().component("jetty").host("0.0.0.0").port(8080)
                    .bindingMode(RestBindingMode.off);

            rest("/r/ping").get().route()
                    .log("Testing REST")
                    .transform().constant("REST Service Running\n");
        }
    });

    camelContext.start();

    while (true) {
        Thread.sleep(1000);
    }
}

private static ResourceHandler getContextHandler() throws IOException {
   ResourceHandler rh = new ResourceHandler();
   rh.setBaseResource(Resource.newResource("/tmp/content"));
   return rh;
}

}