i am currently struggling with HTTP Session replication on tomcat with complex objects.
some objects implement Serializable but hold non-serializable members.
unfortunately, the stacktraces do not provide much useful info here by default.
there is a flag -XX:???? to enable verbose class names in the stacktrace when a NotSerializableException occurrs. this flag would help me a lot finding the source of the error. but i forgot its name
what is the name of the flag?
I'm not sure that what you're asking for exists - check out Sun's list of VM options, whereby a grep for "seri" only turns up -XX:-UseSerialGC.
I am not aware of such a flag, but I don't think more verbose stack traces will help.
The name of the class that is not serializable normally appears in the exception message, e.g. "java.io.NotSerializableException: com.mycompany.mypackage.Foo"
The stack trace shows what methods were executing at the time, usually something like:
at java.io.ObjectOutputStream.writeObject0(Unknown Source)
at java.io.ObjectOutputStream.writeObject(Unknown Source)
But any extra information about those methods will not tell you what class caused the problem.