[ https://issues.jboss.org/browse/CDI-317?page=com.atlassian.jira.plugin.sy... ] Mark Struberg commented on CDI-317: ----------------------------------- Read 6.6.1 {quote} A producer method is passivation capable if and only if it never returns a value which is not passivation capable at runtime. {quote} plus {quote} A custom implementation of Bean is passivation capable if it implements the interface PassivationCapable. {quote} So, how does a Bean tells the container: "most of my implementations are passivation capable, but sadly some are not? There is no such thing like dynamically adding an interface. At least not with compiled classes. You would need to add 2 Bean classes for the same logic. In OWB we allow getId() to return null which indicates that this very bean is not passivation capable. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira