protected final @NotNull List<KeyedLazyInstance<T>> getExtensions() {
    ExtensionPoint<@NotNull KeyedLazyInstance<T>> point = getPoint();
    if (point == null) {
      return Java11Shim.INSTANCE.listOf();
    }
    else {
      addExtensionPointListener(point);
      return point.getExtensionList();
    }
  }
protected final @NotNull List<KeyedLazyInstance<T>> getExtensions()