public void outboundHttpContentTypeTest() throws Exception
{
MuleClient client = muleContext.getClient();
Map<String,Object> msgProps = new HashMap<String,Object>();
msgProps.put("custom-header", "value-custom-header");
client.dispatch("vm://in", "HelloWorld!", msgProps);
MuleMessage reply = client.request("vm://out", 120000);
Map<String, Object> headers = (Map<String, Object>) reply.getPayload();
for (String header : HttpConstants.REQUEST_HEADER_NAMES.values())