Handling passivated class structure changes

[s.lisovoy]

Consider, I have version 1 of my application. It has a class A, that cached and then passivated to infinispan file storage.

public class A implements Serializable {
    public SortedMap props = new TreeMap();
     ...
}

Let's suppose I'll create version 2 of my application. Class A will change it's property type to

public class A implements Serializable {
    public Map props = new HashMap();
     ...
}

For now, loading object A from old file storage obviously falling with ClassCastException etc.

So, there is my question: Does infinispan supports these changes of class structure? Can infinispan check class structure version? Can invalidate objects with old structure, for example?
PS. Of course I can override object serialization and handle this by my own hands, but may be I miss something already existing?

[galder.zamarreno]

Using your own custom externalizers is the best way to handle such situations: Marshalling guide

[s.lisovoy]

It's very strange to such mature application as it is Infinispan. Because add some sort of version checking on serialization is very cheap. As for example based on serialVersionUid or introduce some API contract...

Thanks for your answer.