private void checkCanUseCache() {
    LOG.assertTrue(myRootTypeProvider == null, "Caching not supported for OrderRootsEnumerator with root type provider");
    LOG.assertTrue(myCustomSdkRootProvider == null, "Caching not supported for OrderRootsEnumerator with 'usingCustomSdkRootProvider' option");
    LOG.assertTrue(!myWithoutSelfModuleOutput, "Caching not supported for OrderRootsEnumerator with 'withoutSelfModuleOutput' option");
  }
private void checkCanUseCache()