@NotNull
  private static List<SyntheticLibraryDescriptor> collectAdditionalLibDescriptors(@NotNull Project project) {
    List<SyntheticLibraryDescriptor> libraries = new ArrayList<>();
    for (AdditionalLibraryRootsProvider provider : AdditionalLibraryRootsProvider.EP_NAME.getExtensionList()) {
      Set<String> comparisonIds = new HashSet<>();
      Collection<SyntheticLibrary> allLibs = provider.getAdditionalProjectLibraries(project);
      for (SyntheticLibrary library : allLibs) {
        String id = library.getComparisonId();
        if (id != null && !comparisonIds.add(id)) {
          LOG.error("Multiple libraries have comparison id " + id + ": " +
                    ContainerUtil.filter(allLibs, lib -> id.equals(lib.getComparisonId())));
        }
        libraries.add(new SyntheticLibraryDescriptor(library, provider));
      }
    }
    return libraries;
  }
@NotNull
  private static List<SyntheticLibraryDescriptor> collectAdditionalLibDescriptors(@NotNull Project project)