We've written a custom PdxSerializer that serializes and deserializes our cached domain objects based on standard JAXB annotations. This PdxSerializer worked great for us in Gemfire 6.6 but after upgrading the project to Gemfire 7 I am getting an error on cache startup due to the class java.util.concurrent.CopyOnWriteArraySet not being serializable (i.e. not being annotated with JAXB annotations for my PdxSerializer). I am not using the java.util.concurrent.CopyOnWriteArraySet in any of my domain objects. Any idea what is causing this?
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