Joan, If persistence is not used then remove/move your work dir completely and restart. Check that your classpath doesn't contain duplicate classes for the same type. These might be in separate jars w/the same package and name, but be different inside. Take a look at marshaller/-1293425677.classname0 (this dir is there for in-memory as well) to see what type this typeid represents. Remove it and restart to see if the problem manifests again, and if not then that type causes the error. Try simplifying/changing/looking for dups it to see what field is causing this. Thanks, Alex
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