No host for http4 connection

[Bagwell, Allen F]

I am trying to write a test that needs to contact a RESTful service and get 
back a reply in JSON. I wanted a lightweight HTTP client, so I opted to use the


Here is what my prep processor does:

exchange.getIn().setHeader(Exchange.ACCEPT_CONTENT_TYPE, "application/json");
exchange.getIn().setHeader(Exchange.CONTENT_TYPE, "text/plain");
exchange.getIn().setHeader(Exchange.HTTP_METHOD, POST);
exchange.getIn().setBody("This is my test");


Here is the route...

<route id="test-contact">
         <from uri="seda:input"/>
         <process ref="prepProcessor"/>
         <to uri="http4://localhost:7000/cxf/rest/contact"/>
         <unmarshal ref="jsonResponse"/>
         <log message="${body}" loggingLevel="INFO"/>
         <to uri="mock:end"/>
</route>


Here's the  part of the log when the test starts to show I have a server set up 
for the HTTP4 client to contact (it maps the "/contact" part of the URI in a 
service bean):

INFO: Setting the server's publish address to be http://localhost:7000/cxf/rest
INFO  20-Oct-2017 08:54:03.382, [main], Server - jetty-9.2.21.v20170120
WARN  20-Oct-2017 08:54:03.410, [main], AbstractHandler - No Server set for 
org.apache.cxf.transport.http_jetty.JettyHTTPServerEngine$1@2ca6546f
INFO  20-Oct-2017 08:54:03.415, [main], ServerConnector - Started 
ServerConnector@73877e19{HTTP/1.1}{localhost:7000}
INFO  20-Oct-2017 08:54:03.415, [main], Server - Started @10647ms

Here is the log output from the moment the prepProcessor bean is invoked in the 
test:

DEBUG 20-Oct-2017 08:54:04.732, [Camel (test-context) thread #2 - 
seda://input], PrepProcessor - {breadcrumbId=ID-arda-32947-1508514836918-0-6, 
CamelAcceptContentType=application/json, CamelHttpMethod=POST, 
Content-Type=text/plain}
WARN  20-Oct-2017 08:54:04.980, [qtp632841653-70], HttpParser - badMessage: 400 
No Host for 
HttpChannelOverHttp@47cfe850{r=0,c=false,a=IDLE,uri=/cxf/rest/contact}

Can anyone spot what I'm doing wrong here? I followed the instructions off the 
Camel-HTTP4 web page. It seemed pretty straight-forward, so I'm not 
understanding why it can't find a host.

Thanks!
-Allen