protected void finalize () throws Throwable {
        if ( isConnected() && this.usageCount.get() != 0 ) {
            log.warn("Tree was not properly released");
        }
    }


    /**
     * 
     * @return whether the tree is connected
     */
    public boolean isConnected () {
        return this.tid != -1 && this.session.isConnected() && this.connectionState.get() == 2;
    }


    /**

            NEXT_HIGHER);
    if (ceilingIndex < ranges.size()
        && ranges.get(ceilingIndex).isConnected(otherRange)
        && !ranges.get(ceilingIndex).intersection(otherRange).isEmpty()) {
      return true;
    }
    return ceilingIndex > 0
        && ranges.get(ceilingIndex - 1).isConnected(otherRange)
        && !ranges.get(ceilingIndex - 1).intersection(otherRange).isEmpty();
  }

  @Override

     *
     * @see java.lang.AutoCloseable#close()
     */
    @Override
    void close () throws CIFSException;


    /**
     * @return the tree is connected
     */
    boolean isConnected ();


    /**
     * @return server timezone offset
     * @throws CIFSException
     */
    long getServerTimeZoneOffset () throws CIFSException;


    /**
     * @return server reported domain name

    // test that connected ranges are coalesced
    for (int i = 0; i + 1 < asRanges.size(); i++) {
      Range<C> range1 = asRanges.get(i);
      Range<C> range2 = asRanges.get(i + 1);
      assertFalse(range1.isConnected(range2));
    }

    // test that there are no empty ranges
    for (Range<C> range : asRanges) {
      assertFalse(range.isEmpty());
    }

    // test that the RangeSet's span is the span of all the ranges

   *
   * <p>The intersection exists if and only if the two ranges are {@linkplain #isConnected
   * connected}.
   *
   * <p>The intersection operation is commutative, associative and idempotent, and its identity
   * element is {@link Range#all}).
   *
   * @throws IllegalArgumentException if {@code isConnected(connectedRange)} is {@code false}
   */
  public Range<C> intersection(Range<C> connectedRange) {

 * with the range (if any) that contains a specified key.
 *
 * <p>In contrast to {@link RangeSet}, no "coalescing" is done of {@linkplain
 * Range#isConnected(Range) connected} ranges, even if they are mapped to the same value.
 *
 * @author Louis Wasserman
 * @since 14.0
 */
@SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989

      boolean anyOverlaps = false;
      for (Range<Integer> range : subset) {
        boolean overlaps = false;
        for (Range<Integer> other : mutable.asRanges()) {
          if (other.isConnected(range) && !other.intersection(range).isEmpty()) {
            overlaps = true;
            anyOverlaps = true;
            break;
          }
        }

        try {

  private static <K extends Comparable, V> Range<K> coalesce(
      Range<K> range, V value, @CheckForNull Entry<Cut<K>, RangeMapEntry<K, V>> entry) {
    if (entry != null
        && entry.getValue().getKey().isConnected(range)
        && entry.getValue().getValue().equals(value)) {
      return range.span(entry.getValue().getKey());
    }
    return range;
  }

  @Override

    for (Range<Integer> query : QUERY_RANGES) {
      boolean expectIntersect = false;
      for (Range<Integer> expectedRange : rangeSet.asRanges()) {
        if (expectedRange.isConnected(query) && !expectedRange.intersection(query).isEmpty()) {
          expectIntersect = true;
          break;
        }
      }
      assertEquals(

			target.stanConn, connErr = target.args.connectStan()
		} else if !target.stanConn.NatsConn().IsConnected() {
			return false, store.ErrNotConnected
		}
	} else {
		if target.natsConn == nil {
			target.natsConn, connErr = target.args.connectNats()
		} else if !target.natsConn.IsConnected() {
			return false, store.ErrNotConnected
		}
	}

	if connErr != nil {