@GwtIncompatible // not worth using in GWT for now
final class CompactLinkedHashMap<K extends @Nullable Object, V extends @Nullable Object>
    extends CompactHashMap<K, V> {
  // TODO(lowasser): implement removeEldestEntry so this can be used as a drop-in replacement

  /** Creates an empty {@code CompactLinkedHashMap} instance. */
  public static <K extends @Nullable Object, V extends @Nullable Object>

    
    public HandleCache() {
        this.lruCache = new LinkedHashMap<String, HandleInfo>(maxHandles, 0.75f, true) {
            @Override
            protected boolean removeEldestEntry(Map.Entry<String, HandleInfo> eldest) {
                if (size() > maxHandles) {
                    // Release least recently used non-persistent handle

  }

  @Throws(IOException::class)
  fun trimToSize() {
    while (size > maxSize) {
      if (!removeOldestEntry()) return
    }
    mostRecentTrimFailed = false
  }

  /** Returns true if an entry was removed. This will return false if all entries are zombies. */
  private fun removeOldestEntry(): Boolean {
    for (toEvict in lruEntries.values) {
      if (!toEvict.zombie) {
        removeEntry(toEvict)