public <T extends TaskRepository> void setRepositories(List<T> repositories) {

    Set<TaskRepository> set = new HashSet<TaskRepository>(myRepositories);
    set.removeAll(repositories);
    myBadRepositories.removeAll(set); // remove all changed reps
    myIssueCache.clear();

    myRepositories.clear();
    myRepositories.addAll(repositories);

    reps:
    for (T repository : repositories) {
      if (repository.isShared() && repository.getUrl() != null) {
        List<TaskProjectConfiguration.SharedServer> servers = getProjectConfiguration().servers;
        TaskRepositoryType type = repository.getRepositoryType();
        for (TaskProjectConfiguration.SharedServer server : servers) {
          if (repository.getUrl().equals(server.url) && type.getName().equals(server.type)) {
            continue reps;
          }
        }
        TaskProjectConfiguration.SharedServer server = new TaskProjectConfiguration.SharedServer();
        server.type = type.getName();
        server.url = repository.getUrl();
        servers.add(server);
      }
    }
  }
  public void projectOpened() {

    TaskProjectConfiguration projectConfiguration = getProjectConfiguration();

    servers:
    for (TaskProjectConfiguration.SharedServer server : projectConfiguration.servers) {
      if (server.type == null || server.url == null) {
        continue;
      }
      for (TaskRepositoryType<?> repositoryType : TaskRepositoryType.getRepositoryTypes()) {
        if (repositoryType.getName().equals(server.type)) {
          for (TaskRepository repository : myRepositories) {
            if (!repositoryType.equals(repository.getRepositoryType())) {
              continue;
            }
            if (server.url.equals(repository.getUrl())) {
              continue servers;
            }
          }
          TaskRepository repository = repositoryType.createRepository();
          repository.setUrl(server.url);
          myRepositories.add(repository);
        }
      }
    }

    myContextManager.pack(200, 50);

    // make sure the task is associated with default changelist
    LocalTask defaultTask = findTask(LocalTaskImpl.DEFAULT_TASK_ID);
    LocalChangeList defaultList = myChangeListManager.findChangeList(LocalChangeList.DEFAULT_NAME);
    if (defaultList != null && defaultTask != null) {
      ChangeListInfo listInfo = new ChangeListInfo(defaultList);
      if (!defaultTask.getChangeLists().contains(listInfo)) {
        defaultTask.addChangelist(listInfo);
      }
    }

    // remove already not existing changelists from tasks changelists
    for (LocalTask localTask : getLocalTasks()) {
      for (Iterator<ChangeListInfo> iterator = localTask.getChangeLists().iterator();
          iterator.hasNext(); ) {
        final ChangeListInfo changeListInfo = iterator.next();
        if (myChangeListManager.getChangeList(changeListInfo.id) == null) {
          iterator.remove();
        }
      }
    }

    myChangeListManager.addChangeListListener(myChangeListListener);
  }
  /**
   * Returns real working copies roots - if there is <Project Root> -> Subversion setting, and there
   * is one working copy, will return one root
   */
  public List<WCInfo> getAllWcInfos() {
    final SvnFileUrlMapping urlMapping = getSvnFileUrlMapping();

    final List<RootUrlInfo> infoList = urlMapping.getAllWcInfos();
    final List<WCInfo> infos = new ArrayList<WCInfo>();
    for (RootUrlInfo info : infoList) {
      final File file = info.getIoFile();
      infos.add(
          new WCInfo(
              file.getAbsolutePath(),
              info.getAbsoluteUrlAsUrl(),
              info.getFormat(),
              info.getRepositoryUrl(),
              SvnUtil.isWorkingCopyRoot(file),
              info.getType(),
              SvnUtil.getDepth(this, file)));
    }
    return infos;
  }
  @Override
  public <S> List<S> filterUniqueRoots(
      final List<S> in, final Convertor<S, VirtualFile> convertor) {
    if (in.size() <= 1) return in;

    final List<MyPair<S>> infos = new ArrayList<MyPair<S>>(in.size());
    final SvnFileUrlMappingImpl mapping = (SvnFileUrlMappingImpl) getSvnFileUrlMapping();
    final List<S> notMatched = new LinkedList<S>();
    for (S s : in) {
      final VirtualFile vf = convertor.convert(s);
      if (vf == null) continue;

      final File ioFile = new File(vf.getPath());
      SVNURL url = mapping.getUrlForFile(ioFile);
      if (url == null) {
        url = SvnUtil.getUrl(this, ioFile);
        if (url == null) {
          notMatched.add(s);
          continue;
        }
      }
      infos.add(new MyPair<S>(vf, url.toString(), s));
    }
    final List<MyPair<S>> filtered = new ArrayList<MyPair<S>>(infos.size());
    ForNestedRootChecker.filterOutSuperfluousChildren(this, infos, filtered);

    final List<S> converted =
        ObjectsConvertor.convert(
            filtered,
            new Convertor<MyPair<S>, S>() {
              @Override
              public S convert(final MyPair<S> o) {
                return o.getSrc();
              }
            });
    if (!notMatched.isEmpty()) {
      // potential bug is here: order is not kept. but seems it only occurs for cases where result
      // is sorted after filtering so ok
      converted.addAll(notMatched);
    }
    return converted;
  }