code: public SecurityIdentityType<SessionBeanType<T>> getOrCreateSecurityIdentity()
     {
        Node node = childNode.getOrCreate("security-identity");
        SecurityIdentityType<SessionBeanType<T>> securityIdentity = new SecurityIdentityTypeImpl<SessionBeanType<T>>(this, "security-identity", childNode, node);
        return securityIdentity;
     }
docs: If not already created, a new <code>security-identity</code> element with the given value will be created.
  Otherwise, the existing <code>security-identity</code> element will be returned.
  @return  a new or existing instance of <code>SecurityIdentityType<SessionBeanType<T>></code>