You must set this property on all servers that you want to use JSG.
In the tree component, expand the Configurations node.
Expand the desired node.
Select the JVM Settings node
In the JVM Settings page, choose the JVM Options tab.
Click Add JVM Option, and enter the following value:
-Dcom.sun.CORBA.encoding.ORBEnableJavaSerialization=true
Click Save
Restart the Application Server.