code: @Test public void testRequestTargetHostConnectHttp10() throws Exception {
    HttpContext context=new BasicHttpContext(null);
    HttpHost host=new HttpHost("somehost",8080,"http");
    context.setAttribute(ExecutionContext.HTTP_TARGET_HOST,host);
    BasicHttpRequest request=new BasicHttpRequest("CONNECT","/",HttpVersion.HTTP_1_0);
    RequestTargetHost interceptor=new RequestTargetHost();
    interceptor.process(request,context);
    Header header=request.getFirstHeader(HTTP.TARGET_HOST);
    Assert.assertNull(header);
  }
  