/**
     * Updates the watchers after changes to the root.
     *
     * @see FileWatcherRegistry#virtualFileSystemContentsChanged(Collection, Collection, SnapshotHierarchy)
     */
    void virtualFileSystemContentsChanged(Collection<FileSystemLocationSnapshot> removedSnapshots, Collection<FileSystemLocationSnapshot> addedSnapshots, SnapshotHierarchy root);

    /**

    }

    @Override
    public void virtualFileSystemContentsChanged(Collection<FileSystemLocationSnapshot> removedSnapshots, Collection<FileSystemLocationSnapshot> addedSnapshots, SnapshotHierarchy root) {
        fileWatcherUpdater.virtualFileSystemContentsChanged(removedSnapshots, addedSnapshots, root);
    }

    @Override

    /**
     * Updates the watchers after changes to the root.
     *
     * @throws WatchingNotSupportedException when the native watchers can't be updated.
     */
    void virtualFileSystemContentsChanged(Collection<FileSystemLocationSnapshot> removedSnapshots, Collection<FileSystemLocationSnapshot> addedSnapshots, SnapshotHierarchy root);

    /**
     * Updates the VFS and the watchers when the build started.
     *

            SnapshotHierarchy invalidatedRoot = currentRoot.invalidate(location, diffListener);
            diffListener.publishSnapshotDiff((removedSnapshots, addedSnapshots) -> virtualFileSystemContentsChanged(removedSnapshots, addedSnapshots, invalidatedRoot));
            return invalidatedRoot;
        };
    }

    @Override
    protected void startWatchingProbeDirectory(File probeDirectory) {

            newRoot = invalidator.invalidate(movedDirectory.getAbsolutePath(), newRoot);
        }
        return newRoot;
    }

    @Override
    public void virtualFileSystemContentsChanged(Collection<FileSystemLocationSnapshot> removedSnapshots, Collection<FileSystemLocationSnapshot> addedSnapshots, SnapshotHierarchy root) {

            return withWatcherChangeErrorHandling(newRoot, () -> diffListener.publishSnapshotDiff((removedSnapshots, addedSnapshots) ->
                watchRegistry.virtualFileSystemContentsChanged(removedSnapshots, addedSnapshots, newRoot)
            ));
        }
    }

    @Override
    public boolean afterBuildStarted(
        WatchMode watchMode,
        VfsLogging vfsLogging,

            def diffListener = new SnapshotCollectingDiffListener()
            def newRoot = updateFunction.update(diffListener)
            diffListener.publishSnapshotDiff { removed, added ->
                updater.virtualFileSystemContentsChanged(removed, added, newRoot)
            }
            return newRoot
        }
    }

    List<File> movedPaths = []