Getting 415 Unsupported Media Type error when calling a windows web service

Question

I have a BPEL process that invokes a windows web service. This process is working currently on the production system. When trying to run the process in a new test clustered environment, I'm getting the error below (bolded).
We're using 10.1.3.3 Oracle Application Server and BPEL. Please advise on what config files might need to be tweaked to fix this.
InvokeWindowsLoggingWebService(faulted)
[2010/04/16 17:26:35] Faulted while invoking operation "WriteLog" on provider "WindowsLoggingWebService". less
-<messages>
-<input>
-<InvokeWindowsLoggingWebService_InputVariable>
-<part xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="parameters">
-<WriteLog xmlns="http://tempuri.org/">
<FileAbsolutePath>
R:\CV & RM\upload_from_test.log
</FileAbsolutePath>
<Content>
||*************************************************************************************|Append to log file 2010-04-16T16:57:08-04:00|*************************************************************************************||START DATE: 2010-04-16T16:57:08-04:00|END DATE: 2010-04-16T17:25:58-04:00|COUNT: 106|TRANSFER OF FILES TO TAS SUCCESSFUL
</Content>
<NewLineDelimiter>
|
</NewLineDelimiter>
</WriteLog>
</part>
</InvokeWindowsLoggingWebService_InputVariable>
</input>
-<fault>
-<remoteFault xmlns="http://schemas.oracle.com/bpel/extension">
-<part name="summary">
<summary>
exception on JaxRpc invoke: HTTP transport error: javax.xml.soap.SOAPException: java.security.PrivilegedActionException: javax.xml.soap.SOAPException: Bad response: 415 Unsupported Media Type
</summary>
</part>
</remoteFault>
</fault>
</messages>
[2010/04/16 17:26:35] "{http://schemas.oracle.com/bpel/extension}remoteFault" has been thrown. less
-<remoteFault xmlns="http://schemas.oracle.com/bpel/extension">
-<part name="summary">
<summary>
exception on JaxRpc invoke: HTTP transport error: javax.xml.soap.SOAPException: java.security.PrivilegedActionException: javax.xml.soap.SOAPException: Bad response: 415 Unsupported Media Type
</summary>
</part>
</remoteFault>

Answer 1

I generated a proxy service in jdev and used the same parms as was done on OAS...
<WriteLog xmlns="http://tempuri.org/">
<FileAbsolutePath>
R:\CV & RM\upload_from_test.log
</FileAbsolutePath>
<Content>
||*************************************************************************************|Append to log file 2010-04-16T16:57:08-04:00|*************************************************************************************||START DATE: 2010-04-16T16:57:08-04:00|END DATE: 2010-04-16T17:25:58-04:00|COUNT: 106|TRANSFER OF FILES TO TAS SUCCESSFUL
</Content>
<NewLineDelimiter>
|
</NewLineDelimiter>
</WriteLog>
and was able to call the service fine and it returned successful. Just seems to be an issue on the server when I execute it from there.