private void processOrphanProjectLibraries() {
      PlatformFacade platformFacade = ServiceManager.getService(PlatformFacade.class);
      List<Library> orphanIdeLibraries = ContainerUtilRt.newArrayList();

      LibraryTable projectLibraryTable = platformFacade.getProjectLibraryTable(myProject);
      for (Library library : projectLibraryTable.getLibraries()) {
        if (!ExternalSystemApiUtil.isExternalSystemLibrary(library, myExternalSystemId)) continue;
        if (ProjectStructureHelper.isOrphanProjectLibrary(
            library, platformFacade.getModules(myProject))) {
          orphanIdeLibraries.add(library);
        }
      }
      for (Library orphanIdeLibrary : orphanIdeLibraries) {
        projectLibraryTable.removeLibrary(orphanIdeLibrary);
      }
    }