i am using saaj-api.jar and saaj-impl.jar to create and send soap messages.
but weblogic seems to be using its own version of classes and not able to take the latest.
how to override weblogic (saaj ) related classes and make the weblogic uses the latest one.
There are options in weblogic-application.xml that allow you to ensure that only classes in your jar are loaded. Try researching into that. When the change in weblogic-application.xml is made, one of the classloaders in the hierarchy will be forced to throw an exception and force weblogic to load your classes.