Re: Serialization help

At some point during the serialization process GWT is calling getClass() on your method return value which always resolves to the runtime class. Thats just how getClass() in Java works. I don't think you can change that behavior of GWT-RPC.

If I give you an instance of type Object how would you know that you only have to serialize a specific super class of the runtime type of that instance? Thats probably only possible by searching for specific annotations that contain that information. GWT-RPC does not have such annotations.

A somewhat similar question is: https://groups.google.com/d/msg/google-web-toolkit/OxuDRkJGFDE/jQd_V0aYzaYJ

You can probably do the same here. Make Subtype a shared class with a super-source version for GWT. The super-source version would be empty and just extend Type. The CustomFieldSerializer for Subtype would now only read/write the Type variables during de-/serialization.

-- J.

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