@Nonnull
    public List<Element> getInboundDataQueue() {
        return inboundDataQueue;
    }
The list of stanzas that was sent by the client to the server over this connection. Possibly empty.

@return An ordered collection of stanzas (possibly empty).
xmppserver/src/main/java/org/jivesoftware/openfire/http/HttpConnection.java