/**
     * Context name for directory lease request
     */
    public static final String NAME_DIRECTORY_REQUEST = "DLse";

    /**
     * Context name for directory lease response
     */
    public static final String NAME_DIRECTORY_RESPONSE = "DLse";

    private static final byte[] CONTEXT_NAME_BYTES = NAME_DIRECTORY_REQUEST.getBytes();

    /**
     * Directory lease flag for recursive caching