public void fillList(
    PsiDirectory @NotNull [] directories,
    @Nullable PsiDirectory defaultSelection,
    @NotNull Project project,
    @Nullable Map<PsiDirectory,String> postfixes
  ) {
    fillList(directories, defaultSelection, project, null, postfixes);
  }
public void fillList(
    PsiDirectory @NotNull [] directories,
    @Nullable PsiDirectory defaultSelection,
    @NotNull Project project,
    @Nullable Map<PsiDirectory,String> postfixes
  )