Enum Serialization with Weblogic EJB Client

July 30, 2008

I was trying to setup an ejb client to connect to an ejb running on a
Weblogic 9 app server. I could connect fine, but kept getting a Mismatched serialization uids
error on a Java 5 Enum class. After some digging I found
a
fix on JavaRanch. For whatever reason using the wlclient.jar will not work when
serializing enums, but using the full blown weblogic.jar is fine. I’m going to ignore the
details on this one and just move along, but maybe someone else understands the
problem/workaround/fix better?