Como corrigir esse problema de mapeamento do Morphia?? ---> ATENÇÃO [org.mongodb.morphia.mapping.DefaultCreator] - Classe não encontrada definida em dbObj:

// Overwrite objectFactorys ClassLoader Method to use Plays ClassLoader
// This prevents the log from beeing spammed with Warning-Messages about ClassNotFoundExceptions happening in Morphias objectFactory
morphia.getMapper().getOptions().setObjectFactory(new DefaultCreator() {
    @Override
    protected ClassLoader getClassLoaderForClass() {
        if(Play.maybeApplication().isDefined()) {
            return Play.classloader(Play.maybeApplication().get());
        } else {
            return PersistedObject.class.getClassLoader();
        }
    }
});