public static void showOperationErrors(final Project project,
                                         final Collection<? extends VcsException> exs,
                                         final @Nls @NotNull String operation) {
    if (exs.size() == 1) {
      showOperationError(project, operation, exs.iterator().next().getMessage());
    }
    else if (exs.size() > 1) {
      // TODO use dialog in order to show big messages
      StringBuilder b = new StringBuilder();
      for (VcsException ex : exs) {
        b.append(GitBundle.message("errors.message.item", ex.getMessage()));
      }
      showOperationError(project, operation, GitBundle.message("errors.message", b.toString()));
    }
  }
public static void showOperationErrors(final Project project,
                                         final Collection<? extends VcsException> exs,
                                         final @Nls @NotNull String operation)