final short[] array;
    final int start;
    final int end;

    ShortArrayAsList(short[] array) {
      this(array, 0, array.length);
    }

    ShortArrayAsList(short[] array, int start, int end) {
      this.array = array;
      this.start = start;
      this.end = end;
    }

    @Override
    public int size() {
      return end - start;
    }

    @Override

           * of the next returned substring -- so nextStart stays the same.
           */
          offset++;
          if (offset > toSplit.length()) {
            offset = -1;
          }
          continue;
        }

        while (start < end && trimmer.matches(toSplit.charAt(start))) {
          start++;
        }

    final int[] array;
    final int start;
    final int end;

    IntArrayAsList(int[] array) {
      this(array, 0, array.length);
    }

    IntArrayAsList(int[] array, int start, int end) {
      this.array = array;
      this.start = start;
      this.end = end;
    }

    @Override
    public int size() {
      return end - start;
    }

    @Override

    final long[] array;
    final int start;
    final int end;

    LongArrayAsList(long[] array) {
      this(array, 0, array.length);
    }

    LongArrayAsList(long[] array, int start, int end) {
      this.array = array;
      this.start = start;
      this.end = end;
    }

    @Override
    public int size() {
      return end - start;
    }

    @Override

      }
      return result;
    }

    @Override
    public long distance(Long start, Long end) {
      long result = end - start;
      if (end > start && result < 0) { // overflow
        return Long.MAX_VALUE;
      }
      if (end < start && result > 0) { // underflow
        return Long.MIN_VALUE;
      }
      return result;
    }

    @Override

	// more efficient, possibly due to cache effects.
	start := -1 // valid span start if >= 0
	for i := 0; i < len(s); {
		size := 1
		r := rune(s[i])
		if r >= utf8.RuneSelf {
			r, size = utf8.DecodeRune(s[i:])
		}
		if f(r) {
			if start >= 0 {
				spans = append(spans, span{start, i})
				start = -1
			}
		} else {
			if start < 0 {
				start = i
			}
		}
		i += size
	}

    final float[] array;
    final int start;
    final int end;

    FloatArrayAsList(float[] array) {
      this(array, 0, array.length);
    }

    FloatArrayAsList(float[] array, int start, int end) {
      this.array = array;
      this.start = start;
      this.end = end;
    }

    @Override
    public int size() {
      return end - start;
    }

    @Override

           * of the next returned substring -- so nextStart stays the same.
           */
          offset++;
          if (offset > toSplit.length()) {
            offset = -1;
          }
          continue;
        }

        while (start < end && trimmer.matches(toSplit.charAt(start))) {
          start++;
        }

            throws SmbAuthException {
        DfsReferralDataInternal res = null;
        DfsReferralDataInternal start = dr;
        DfsReferralDataInternal r = start;
        do {
            r = start.next();
            String refPath = dr.getPath() != null ? '\\' + dr.getPath() : "";
            String nextPath = refPath + ( path != null ? path.substring(r.getPathConsumed()) : "" );

    /** Returns true if this task is ready to start. */
    fun isReady() = true

    /** Do this task's work, and then start another, such as by calling [startNextTask]. */
    fun start()
  }

  private object TestThreadSerialTask : SerialTask {
    override fun start() = error("unexpected call")
  }

  inner class RunnableSerialTask(
    private val runnable: Runnable,
  ) : SerialTask {