http:inbound-gateway not returning response

[annuk]

Hi,

I am using an http:inbound-gateway for processing a request on server and sending the response back to the client.
The problem is that it always returns null.
Here is my configuration:

<int-http:inbound-gateway id="testAdapter.htm" request-channel="testChannel" name="/testAdapter.htm" reply-channel="testGatewayChannel" supported-methods="GET" view-name="defaultJsonView"/>
	<int:service-activator ref="testConverter" input-channel="testChannel" output-channel="testGatewayChannel" />

	<bean id="testConverter" class="com.messaging.MessageReceiver" />
	
	<bean id="testSender" class="com.messaging.ReplySender"/>
	
	<int:service-activator ref="testSender" input-channel="testGatewayChannel" method="sendMessage" />

I even tried using chain:

<int:chain input-channel="testChannel" output-channel="testGatewayChannel">
		<int:service-activator ref="testConverter" />
		<int:service-activator ref="testSender" method="sendMessage" />
</int:chain>

But still got the same response as null.

And here is my Sender Class which sends the response

public class ReplySender
{
public String sendMessage(Message<?> message)
	{

		try
		{
			System.out.println("in ReplySender sendMessage " + message.getPayload());

			
		}
		catch (Exception e)
		{
			e.printStackTrace();
		}
		return   message.getPayload().toString();
}
}

I am getting response as null on my client side.
Where am i going wrong?Am i using the right method?
Which is the best method for returning a response to the client?
Please help.
Thanks in advance..