SOAP to Proxy async scenario getting java exectpion with CLIENT_SEND_FAILED error in

HI Experts,

My scenario is soap -proxy  async  scenario .Recently my sap pi system is upgraded .while testing using soap ui i am getting below error

But table is updated successfully in sap ecc.

<faultcode>SOAP:Server</faultcode>

         <faultstring>Server Error</faultstring>

         <detail>

            <s:SystemError xmlns:s="http://sap.com/xi/WebService/xi2.0">

               <context>XIAdapter</context>

               <code>ADAPTER.JAVA_EXCEPTION</code>

               <text>com.sap.engine.interfaces.messaging.api.exception.MessagingException: com.sap.engine.interfaces.messaging.api.exception.MessagingException: XIServer:CLIENT_SEND_FAILED:

  at com.sap.aii.adapter.soap.web.SOAPHandler.processSOAPtoXMB(SOAPHandler.java:743)

  at com.sap.aii.adapter.soap.web.MessageServlet.doPost(MessageServlet.java:470)

Please help us to trace the solution.

Thanks in advance.

Regards

Ravinder.S