avoid NPE in InstanceImpl

git-svn-id: https://svn.apache.org/repos/asf/openwebbeans/trunk@1631174 13f79535-47bb-0310-9956-ffa450edef68
skip EJB fornow in validatePassivationCapable

git-svn-id: https://svn.apache.org/repos/asf/openwebbeans/trunk@1631178 13f79535-47bb-0310-9956-ffa450edef68