/** @generated */
    protected void collectNewChildDescriptorsGen(Collection<Object> newChildDescriptors, Object object) {
        // ... as generated by EMF ...
    }

    // this will not be re-generated by EMF
    protected void collectNewChildDescriptors(Collection<Object> newChildDescriptors, Object object) {
        // delegate to the generated implementation
        collectNewChildDescriptors(newChildDescriptors, object);

        // filter the result
        newChildDescriptors.removeIf(this::isUnwantedChildDescriptor);
    }