You need to be aware of two issues related to SOAP support
Beginning with the release of version 4.0 of Message Queue, support for SOAP administered objects is discontinued.
SOAP development depends upon several files: SUNWjaf, SUNWjmail, SUNWxsrt, and SUNWjaxp. In version 4.1 of Message Queue, these files are available to you only if you are running Message Queue with JDK version 1.6.0 or later.
Previously the SAAJ 1.2 implementation .jar directly referenced mail.jar. In SAAJ 1.3 this reference was removed; thus, Message Queue clients must explicitly put mail.jar in CLASSPATH.