}

    protected ExecutionRequestContext(ExecutionRequestContext parent) {
        this(parent.getNonIncrementalReason().orElse(null), parent.getValidationContext());
    }

    /**
     * If incremental mode is disabled, this returns the reason, otherwise it's empty.
     */
    Optional<String> getNonIncrementalReason() {
        return Optional.ofNullable(nonIncrementalReason);
    }

    /**

            .map(changes -> new IncrementalChangesContext(context, changes.getChangeDescriptions(), changes))
            .orElseGet(() -> {
                ImmutableList<String> rebuildReason = context.getNonIncrementalReason()
                    .map(ImmutableList::of)
                    .orElse(UNTRACKED);
                return new IncrementalChangesContext(context, rebuildReason, null);
            });