This abstract method returns the ACL that is appended to the StandardSecurityPolicy ACL. The getAdditionalACL method is an extension of the getEffectiveAccessControlList method that appends the ACL of the StandardSecurityPolicy instance with additional ACEs. The abstract getAdditionalACL method returns the ACL to which this is appended. If the StandardSecurityPolicy does not return an ACL, the return value of getAdditionalACL is used. If both are null, null is returned and access is granted, which is the default behavior of the StandardSecurityPolicy.

protected abstract AccessControlList getAdditionalACL(Object pSecuredObject) ;