public static void cleanupContents(Content notToRemove, Project project, String contentName) {
    MessageView messageView = MessageView.getInstance(project);
    for (Content content : messageView.getContentManager().getContents()) {
      if (content.isPinned()) continue;
      if (contentName.equals(content.getDisplayName()) && content != notToRemove) {
        if (messageView.getContentManager().removeContent(content, true)) {
          content.release();
        }
      }
    }
  }
public static void cleanupContents(Content notToRemove, Project project, String contentName)