问题
I have a serialization problem with hazelcast 3.5:
When one hazelcast client(Java) puts a value of class
public class MyType extends ArrayList<MyElem>
into a map, and afterwards another client (other Java process) retrieves the value,
it gets back a value of class ArrayList, not the expected subclass MyType!
In hazelcast version 3.1.3 this worked fine: the second client retrieved a value
of the correct subclass MyType.
I used the sample configuration hazelcast.xml and the start script server.bat in both hazelcast versions.
Is this possibly a bug in the new 3.5 version?
My client configuration is empty.
回答1:
Hazelcast (I guess it was) 3.4 added a specialized serializer for List subclasses. You have to register a custom serializer to pick up your type. You can subclass the Hazelcast internal serializer and just exchange the factory and type ids you make it uniquely identified.
来源：https://stackoverflow.com/questions/31537670/get-returns-a-value-of-the-superclass-arraylist-in-hazelcast-3-5