Gregg Wonderly wrote:
michal.klec...@xpro.biz <mailto:michal.klec...@xpro.biz>> wrote:
The use case and the ultimate test to implement is simple - have a
listener that publishes remote events to a JavaSpace acquired dynamically
from a lookup service:
class SpacePublisher implements RemoteEventListener, Serializable {
   private final JavaSpace space;
   public void notify(RemoteEvent evt) {
     space.write(createEntry(evt), ...);
   }
}

It is NOT possible to do currently. It requires non-hierarchical class
loading. It is not easy to solve. It would open a whole lot of
possibilities.

I am probably too ignorant to see it; What exactly is "NOT possible" with
the above use-case snippet?
With currently implemented PreferredClassProvider it is not possible to 
deserialize such an object graph.

This can happen, but what’s necessary is that the codebase of the 
SpacePublisher needs to include all the possible RemoteEvent classes, or the 
javaspace’s classpath has to include them.
I am not sure I understand.
The problem does not have anything to do with RemoteEvent (sub)classes. The issue is that SpacePublisher cannot be deserialized at all ( except one case when JavaSpace interface is available from context class loader and it is not marked as preferred in SpacePublisher code base).

Michal

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