don't know about your issue, but there are other issues fixed in 1.4 that were broke in 1.3 so I wouldn't go back there.
From: Attharkar, Asmita [mailto:[EMAIL PROTECTED] Sent: Thursday, July 03, 2008 9:40 AM To: axis-user@ws.apache.org Subject: MTOM: Axis2-1.4 issue?? XMLStreamException: Unknow type can not serialize All, I am trying to send a pdf attachment in the soap message but I get this: org.apache.axis2.databinding.utils.ConverterUtil.serializeAnyType(ConverterUtil.java:1449) And the message doesn't come to web services server, it is failing in OperationClient.execute() method itself. The AxisFault message shows "Unknow type can not serialize". What could be the possible reasons for this or is this a known issue with axis2 1.4 release? Should I use axis2 1.3 release if I need to send an attachment using MTOM? Thanks so much for you help! I am using JRE and JDK 1.5_15, Ant 1.6, apache tomcat server 1.6 and Axis2 1.4 Thanks, Asmita
