mule- serialization exception while making outbound call -

I have a simple stream in which there is an HTTP inbound endpoint I am trying to consume an HTTP outbound and the following Exceptions are received.

I am able to consume the outbound directly from SOAP UI. But, unable to make calls through the fault flow.

java.io.OptionalDataException (org.apache.commons.lang.SerializationException)

Response from the endpoint ... Internal Server Error, Code: 500

  INFO 2014-02-17 07: 16: 41,234 [[Updater customer] .connector.http.mule.default.receiver.02] org.mule.api.processor.LoggerMessageProcessor: Logger ... in main thread Java.io.OptionalDataException (org.apache.commons.lang.SerializationException)  

Hope this will help identify the raw XML problem.

http: // localhost: 8080 / foo3 HTTP / 1.1 Approved-encoding: gzip, Deflate content-type: text / xml; Charset = UTF-8 Soap Action: "" Content-Length: 2044 Host: Localhost: 8080 Connection: Ativ Elevator User- Agent: Apache-HTTPPLATE / 4.1.1 (Java 1.5)

Raw XML from SOAP UI Output (when hitting direct end point):

  HTTP/1.1 200 OK Date: Tuesday, 18 February 2014 06:10:56 -0600 Server: mule core / 3.4.0 material-type: text / xml; Charset = UTF-8X-MULE_SESSION: sjkfsdhbbzzzxxxxxxx .... http.method: POST X-MULE_ENCODING: UTF-8 Transfer-Encoding: Checked Connection: Close  

Raw XML from SOAP UI when kicking through the rat flow:

  HTTP / 1.1 500 internal server error content-type: text / plain date: Tuesday, 18 February 2014 06:09 : 49 - 0600 Server: Skin EE Core Extension / 3.4.1 http.status: 500 X-MULE_SESSION: sdkfasdfgsdkgfbsdfkxxxxxxxhshduiaodudyy ..... X-MULE_ENCODING: UTF-8 Content-Length: 78 Connection: Close  < / Pre>  
  & lt; Http: connector name = />  
 "NoSessionConnector" & gt; & Lt; Service override session handler = "org.mule.session.NullSessionHandler" /> & Lt; / Http: Connector & gt;