protected final CharSequence seq;

    protected CharSequenceCharSource(CharSequence seq) {
      this.seq = checkNotNull(seq);
    }

    @Override
    public Reader openStream() {
      return new CharSequenceReader(seq);
    }

    @Override
    public String read() {
      return seq.toString();
    }

    @Override
    public boolean isEmpty() {

		}
	}

	ahs.Lock()
	defer ahs.Unlock()

	// Check if new heal sequence to be started overlaps with any
	// existing, running sequence
	hpath := pathJoin(h.bucket, h.object)
	for k, hSeq := range ahs.healSeqMap {
		if !hSeq.hasEnded() && (HasPrefix(k, hpath) || HasPrefix(hpath, k)) {
			errMsg = "The provided heal sequence path overlaps with an existing " +
				fmt.Sprintf("heal path: %s", k)