h.setType(ZooDefs.OpCode.setACL);
SetACLRequest request = new SetACLRequest();
request.setPath(serverPath);
request.setAcl(acl);
request.setVersion(version);
SetACLResponse response = new SetACLResponse();
cnxn.queuePacket(h, new ReplyHeader(), request, response, cb,
clientPath, serverPath, ctx, null);
}