@Nullable
  protected ContentEntry getContentEntry() {
    final ModifiableRootModel model = getModel();
    if (model != null) {
      final ContentEntry[] entries = model.getContentEntries();
      for (ContentEntry entry : entries) {
        if (entry.getUrl().equals(myContentEntryUrl)) return entry;
      }
    }

    return null;
  }
@Nullable
  protected ContentEntry getContentEntry()