return result;
            });
        });
    }

    private class WorkspaceMoveHandler {
        private final UnitOfWork work;
        private final ImmutableWorkspace workspace;
        private final File temporaryWorkspace;
        private final CachingResult delegateResult;

        public WorkspaceMoveHandler(UnitOfWork work, ImmutableWorkspace workspace, File temporaryWorkspace, CachingResult delegateResult) {