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Failure to invoke a web service

644532Sep 11 2008 — edited Sep 12 2008
I have built an extremely simple BPEL flow. It involves a file adapter and a partner link. The file adapter reads the file's contents and uses one of the items as a parameter to invoke a web service.

The file gets read fine and from the BPEL console, I can see that the task was kicked off with good data. However, the web service invocation fails. Here's what it says:

<messages><input><isLocalIV><part xmlns:xsi="" name="parameters"><isLocalElement xmlns="">
</part></isLocalIV></input><fault><remoteFault xmlns=""><part name="summary"><summary>exception on JaxRpc invoke: HTTP transport error: javax.xml.soap.SOAPException: javax.xml.soap.SOAPException: Message send failed: For input string: ""</summary>

I'm apparently failing to invoke my web service. So, my question is:

What's the most likely cause of this?

Thanks in advance for your help.
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Locked on Oct 10 2008
Added on Sep 11 2008