private void refresh() {
    SvnVcs vcs = SvnVcs.getInstance(myProject);
    VirtualFile[] roots = getNotFilteredRoots();
    SvnRootsDetector rootsDetector = new SvnRootsDetector(this, vcs, myNestedCopiesHolder);
    SvnRootsDetector.Result result = rootsDetector.detectCopyRoots(roots, init());

    if (result != null) {
      putWcDbFilesToVfs(result.getTopRoots());
      new NewRootsApplier(result).apply();
    }
  }
private void refresh()