protected ActivationFile.Builder transformActivationFile_Missing(
                    Supplier<? extends ActivationFile.Builder> creator,
                    ActivationFile.Builder builder,
                    ActivationFile target) {
                String path = target.getMissing();
                String xformed = transformPath(path, target, "missing");

        @Override
        protected ActivationFile.Builder transformActivationFile_Missing(
                Supplier<? extends ActivationFile.Builder> creator,
                ActivationFile.Builder builder,
                ActivationFile target) {
            stk.push(nextFrame("missing"));
            try {
                return super.transformActivationFile_Missing(creator, builder, target);
            } finally {
                stk.pop();