/** The key of the message: Crawler is running. The document cannot be deleted. */
    public static final String ERRORS_cannot_delete_doc_because_of_running = "{errors.cannot_delete_doc_because_of_running}";

    /** The key of the message: Failed to delete document. */
    public static final String ERRORS_failed_to_delete_doc_in_admin = "{errors.failed_to_delete_doc_in_admin}";

    /** The key of the message: Delete */
    public static final String LABELS_search_list_button_delete = "{labels.search_list_button_delete}";

    /** The key of the message: Do you really want to delete? */
    public static final String LABELS_search_list_delete_confirmation = "{labels.search_list_delete_confirmation}";

    /** The key of the message: Delete all with this query */

  }

  // TODO(cpovirk): top-level class?
  static class ExecutorSpy implements Executor {

    Executor delegate;
    boolean wasExecuted;

    public ExecutorSpy(Executor delegate) {
      this.delegate = delegate;
    }

    @Override
    public void execute(Runnable command) {
      delegate.execute(command);
      wasExecuted = true;
    }
  }

  }

  // TODO(cpovirk): top-level class?
  static class ExecutorSpy implements Executor {

    Executor delegate;
    boolean wasExecuted;

    public ExecutorSpy(Executor delegate) {
      this.delegate = delegate;
    }

    @Override
    public void execute(Runnable command) {
      delegate.execute(command);
      wasExecuted = true;
    }
  }

      in.defaultReadObject();
      CacheBuilder<K, V> builder = recreateCacheBuilder();
      this.delegate = builder.build();
    }

    private Object readResolve() {
      return delegate;
    }

    @Override
    protected Cache<K, V> delegate() {
      return delegate;
    }
  }

  /**

    private final NavigableMap<K, ? extends V> delegate;

    UnmodifiableNavigableMap(NavigableMap<K, ? extends V> delegate) {
      this.delegate = delegate;
    }

    UnmodifiableNavigableMap(
        NavigableMap<K, ? extends V> delegate, UnmodifiableNavigableMap<K, V> descendingMap) {
      this.delegate = delegate;
      this.descendingMap = descendingMap;
    }

    @Override

      in.defaultReadObject();
      CacheBuilder<K, V> builder = recreateCacheBuilder();
      this.delegate = builder.build();
    }

    private Object readResolve() {
      return delegate;
    }

    @Override
    protected Cache<K, V> delegate() {
      return delegate;
    }
  }

  /**