func (b *Buffer) Peek(n int) ([]byte, error) {
	if b.Len() < n {
		return b.buf[b.off:], io.EOF
	}
	return b.buf[b.off : b.off+n], nil
}

// empty reports whether the unread portion of the buffer is empty.
func (b *Buffer) empty() bool { return len(b.buf) <= b.off }

// Len returns the number of bytes of the unread portion of the buffer;
// b.Len() == len(b.Bytes()).

   */
  @IgnoreJRERequirement // used only when Path is available (and only from tests)
  @VisibleForTesting
  static void testMakingUserPermissionsFromScratch() throws IOException {
    // All we're testing is whether it throws.
    FileAttribute<?> unused = JavaNioCreator.userPermissions().get();
  }

  @IgnoreJRERequirement // used only when Path is available
  private static final class JavaNioCreator extends TempFileCreator {

    private void workOnQueue() {
      boolean interruptedDuringTask = false;
      boolean hasSetRunning = false;
      try {
        while (true) {
          synchronized (queue) {
            // Choose whether this thread will run or not after acquiring the lock on the first
            // iteration
            if (!hasSetRunning) {
              if (workerRunningState == RUNNING) {

     *
     * @return true if the problem collector has overflowed and some problems were not preserved
     */
    boolean problemsOverflow();

    /**
     * Reports a problem: always maintains the counters, but whether problem is preserved in memory, depends on
     * implementation and its configuration.
     *
     * @param problem the problem to report
     * @return {@code true} if passed problem is preserved by this call.
     */

	if s3Err != ErrNone {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
		return
	}

	// Now we have all the key names, for each of them, check whether the policy grants permission for
	// the user to list it. Filter in place to leave only allowed keys.
	n := 0
	for _, k := range allKeys {
		if checkKMSActionAllowed(r, owner, cred, policy.KMSListKeysAction, k.Name) {

		if err != nil {
			return err
		}
	}
	return nil
}

// Eval - evaluates the Select statement for the given record. It
// applies only to non-aggregation queries.
// The function returns whether the statement passed the WHERE clause and should be outputted.
func (e *SelectStatement) Eval(input, output Record) (Record, error) {
	ok, err := e.isPassingWhereClause(input)
	if err != nil || !ok {

	if len(object) == 0 {
		return false
	}
	if HasSuffix(object, SlashSeparator) {
		return false
	}
	return IsValidObjectPrefix(object)
}

// IsValidObjectPrefix verifies whether the prefix is a valid object name.
// Its valid to have a empty prefix.
func IsValidObjectPrefix(object string) bool {
	if hasBadPathComponent(object) {
		return false
	}
	if !utf8.ValidString(object) {

   * not present). When the collection delegate in the WrappedCollection is
   * empty, the multimap may contain subsequently added values for that key. To
   * handle that situation, the WrappedCollection checks whether map contains
   * an entry for the provided key, and if so replaces the delegate.
   */

  private transient Map<K, Collection<V>> map;
  private transient int totalSize;

  /**

    private final Configuration cfg;
    private final int fid;
    private final byte[] fileId;
    private boolean open = true;
    private final long tree_num; // for checking whether the tree changed
    private SmbTreeHandleImpl tree;

    private final AtomicLong usageCount = new AtomicLong(1);
    private final int flags;
    private final int access;
    private final int attrs;

    /**
     * Create path validator with custom settings
     *
     * @param maxPathLength maximum total path length
     * @param maxComponentLength maximum length for path components
     * @param allowUncPaths whether to allow UNC paths
     * @param strictMode strict validation mode
     */
    public PathValidator(int maxPathLength, int maxComponentLength, boolean allowUncPaths, boolean strictMode) {