SenderBean findAckBean = new SenderBean ();
findAckBean.setSequenceID(sequenceId);
findAckBean.setMessageType(Sandesha2Constants.MessageTypes.ACK);
SenderBeanMgr senderBeanMgr = storageManager.getSenderBeanMgr();
Iterator<SenderBean> ackBeans = senderBeanMgr.find(findAckBean).iterator();
while (ackBeans.hasNext()) {
SenderBean ackBean = (SenderBean) ackBeans.next();
senderBeanMgr.delete(ackBean.getMessageID());
storageManager.removeMessageContext(ackBean.getMessageContextRefKey());