Java Proxies Inside Story Example: questions

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Hi,

I've tried to implement the example of the document "Java Proxies and SAP XI - The Inside Story, Part II". Actually it's not running and I don't know why. Maybe anybody of you already implemented the described scenario successfully and can support me here:

InvokeProxy.jsp

- in the first code line, why is is import="http2Db.ProxyCall"? When I have a look at the coding, I think it should be import="http2Db.InvokeProxy"?

I've created the EAR project and deployed it to the J2EE Engine. When I try to test the scenario invoking the JSP side I just get back "The page cannot be displayed", the normal browser exception message. How can I check what goes wrong? Here I'm wondering that the Send Button of the HTML form in the JSP page invokes the function proxyfun(). That function itself has the following codeline within:

document.frm_proxy.action="ProxySender.jsp"

What's that for a jsp page? I cannot find it in the "Java Proxies[...].pdf"?

BR

Dennis