public static @NotNull Insets getScreenInsets(final @NotNull GraphicsConfiguration gc) {
    if (insetCache == null) {
      return calcInsets(gc);
    }

    synchronized (insetCache) {
      Pair<Insets, Long> data = insetCache.get(gc);
      long now = System.currentTimeMillis();
      if (data == null || now > data.second + ourInsetsTimeout) {
        data = new Pair<>(calcInsets(gc), now);
        insetCache.put(gc, data);
      }
      return data.first;
    }
  }
public static @NotNull Insets getScreenInsets(final @NotNull GraphicsConfiguration gc)