@Override
  public VirtualFile @NotNull [] getDirectoriesByPackageName(@NotNull String packageName, boolean includeLibrarySources) {
    return getDirsByPackageName(packageName, includeLibrarySources).toArray(VirtualFile.EMPTY_ARRAY);
  }
@Override
  public VirtualFile @NotNull [] getDirectoriesByPackageName(@NotNull String packageName, boolean includeLibrarySources)