Error passivating beans

[Rick Bos]

        I have been using Orion for a month now.

        I just started doing some Bean Managed Persistence Entity Beans.

        Previously, I was only doing CMP.

        Now when I shut down, I get this error:

        Error deserializing session: java.io.WriteAbortedException: Writing
aborted by exception; java.io.NotSerializableException:
com.evermind.server.gi

        I am assuming this is because I have only implemented ejbLoad, and
not ejbStore.
        I want my beans to be read only.

        Any advice would be appreciated.