java.lang.ClassCastException when serializing object

[teamon]

The code to reproduce: https://gist.github.com/1af85bff5de659b3d266

The issue is that this code works under scala repl, but within sbt console it throws an exception.

It is not only related to sbt console, if I execute jetty-run from sbt it behaves the same way.

[harrah]

This is just standard OOIS behavior in the presence of class loaders, unfortunately. There isn't even a simple place you can say "use this class loader" and sbt can't work around it either as far as I know. You have to have a custom OOIS subclass, although it isn't too bad. See http://jira.codehaus.org/browse/GROOVY-1627, for example.

[harrah]

IO.objectInputStream implements a custom OOIS subclass as a convenience for working around the problem.