Async Webservice - unable to see response (its chunked)

Hi,

A simple asynchronous Oracle BPEL process (returns a string 'Hello World') is not being shown when a request is run in SoapUI 2.5.1

Step 1. When I created a project in SoapUI, it did create 2 binding. (1) Initiate and (2) onResult. For both these bindings, set the propert of 'WS-A version' to 200508.
Step 2. Made the 'WS_Addressing' property to TRUE for Soap Request1 under Initiate.
Step 3. Made the 'WS_Addressing' property to TRUE for Soap Request1 under onResult.
Step 4. In Soap Request1 window, from WS-A tab, set the properties to :
- Checked Enable WS-A addressing
- WS-A version is set to 200508
- Checked Add default wsa:Action
- Checked Add default wsa: To:
- Checked Generate Message ID:
Step 5. In the Soap Request 1 pane, right-click and added the WS-A headers.
Step 6. Run the Soap Request.

It does not show up the string 'Hello World'.
It does not show up any error log.
It shows Transfer-Encoding as Chunked.

Could someone help to resolve this issue as why the async process is not showing up the string 'HelloWorld'

Thanks and Regards,
Rakesh