Simplest Camel HTTP4 example not working!

[pmcb55]

Hi,

I'm using Camel already, but am now trying to use the HTTP component, and
started with the simplest possible usage I can think of - sending a simple
search query to Google using a ProducerTemplate. The code runs, but just
hangs on the 'template.request(...' call until a timeout of two minutes
before throwing a NPE and then the 'DONE!' message:


package com.test;

import org.apache.camel.CamelContext;
import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.Processor;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.impl.DefaultCamelContext;

public class OrderProduct {
    public static void main(String[] args) {
        CamelContext context = new DefaultCamelContext();

        try {
            ProducerTemplate template = context.createProducerTemplate();
            context.start();
            
            Exchange exchange =
template.request("http4://www.google.com/search", new Processor() {
            public void process(Exchange exchange) throws Exception {
            }
            });

            if (null != exchange) {
                Message out = exchange.getOut();
                int responseCode =
out.getHeader(Exchange.HTTP_RESPONSE_CODE, Integer.class);
                System.out.println("Response: " +
String.valueOf(responseCode));
            }
       
            Thread.sleep(1000 * 3);
            context.stop();
        } catch (Exception ex) {
            System.out.println("Exception: " + ex);
        }

        System.out.println("DONE!!");
    }
}


*CONSOLE OUTPUT*

11-Jun-2012 20:46:13 org.apache.camel.impl.DefaultCamelContext start
INFO: Apache Camel 2.9.2 (CamelContext: camel-1) is starting
11-Jun-2012 20:46:13 org.apache.camel.management.ManagementStrategyFactory
create
INFO: JMX enabled. Using ManagedManagementStrategy.
11-Jun-2012 20:46:13
org.apache.camel.management.DefaultManagementLifecycleStrategy doStart
INFO: StatisticsLevel at All so enabling load performance statistics
11-Jun-2012 20:46:14
org.apache.camel.impl.converter.AnnotationTypeConverterLoader load
INFO: Found 3 packages with 15 @Converter classes to load
11-Jun-2012 20:46:14
org.apache.camel.impl.converter.BaseTypeConverterRegistry
loadCoreTypeConverters
INFO: Loaded 170 core type converters (total 170 type converters)
11-Jun-2012 20:46:14
org.apache.camel.impl.converter.AnnotationTypeConverterLoader load
INFO: Loaded 2 @Converter classes
11-Jun-2012 20:46:14
org.apache.camel.impl.converter.BaseTypeConverterRegistry loadTypeConverters
INFO: Loaded additional 9 type converters (total 179 type converters) in
0.013 seconds
11-Jun-2012 20:46:14 org.apache.camel.impl.DefaultCamelContext start
INFO: Total 0 routes, of which 0 is started.
11-Jun-2012 20:46:14 org.apache.camel.impl.DefaultCamelContext start
INFO: Apache Camel 2.9.2 (CamelContext: camel-1) started in 0.292 seconds
11-Jun-2012 20:46:14 org.apache.camel.component.http4.HttpComponent
createConnectionManager
INFO: Created ClientConnectionManager
org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager@18b1aebf
11-Jun-2012 20:46:14 org.apache.camel.component.http4.HttpComponent
registerPort
INFO: Registering PLAIN scheme http on port 80
11-Jun-2012 20:46:14 org.apache.camel.component.http4.HttpComponent
registerPort
INFO: Registering PLAIN scheme http4 on port 80
Exception: java.lang.NullPointerException
DONE!!


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