This isn't a native feature of Java serialization. Class implementations are not included in the serialized data. > How do closures get shipped around? > Eve

This isn't a native feature of Java serialization. Class implementations are not included in the serialized data. > How do closures get shipped around? > Every closure is an object of a particular class. When the closure is being sent it gets serialised to a binary form, send over the wire to a remote node and deserialised there. The remote node should have the closure's class in its classpath or enable peerClassLoading in order to load the class from the sender side. https://apacheignite.readme.io/docs/faq https://apacheignite.readme.io/docs/faq