Program: 105772
Project: 105772
Buggy source:
@Override public void reserve(NicProfile nic,Network network,VirtualMachineProfile vm,DeployDestination dest,ReservationContext context) throws InsufficientVirtualNetworkCapcityException, InsufficientAddressCapacityException, ConcurrentOperationException {
  if (dest.getHost().getHypervisorType() != HypervisorType.BareMetal) {
    super.reserve(nic,network,vm,dest,context);
    return;
  }
  HostVO host=_hostDao.findById(dest.getHost().getId());
  _hostDao.loadDetails(host);
  String intentIp=host.getDetail(ApiConstants.IP_ADDRESS);
  if (intentIp == null) {
    super.reserve(nic,network,vm,dest,context);
    return;
  }
  String oldIp=nic.getIp4Address();
  boolean getNewIp=false;
  if (oldIp == null) {
    getNewIp=true;
  }
 else {
    final IPAddressVO ipVO=_ipAddressDao.findByIpAndSourceNetworkId(network.getId(),oldIp);
    if (ipVO != null) {
      PodVlanMapVO mapVO=_podVlanDao.listPodVlanMapsByVlan(ipVO.getVlanId());
      if (mapVO.getPodId() != dest.getPod().getId()) {
        Transaction.execute(new TransactionCallbackNoReturn(){
          @Override public void doInTransactionWithoutResult(          TransactionStatus status){
            _ipAddrMgr.markIpAsUnavailable(ipVO.getId());
            _ipAddressDao.unassignIpAddress(ipVO.getId());
          }
        }
);
        nic.setIp4Address(null);
        getNewIp=true;
      }
    }
  }
  if (getNewIp) {
    getBaremetalIp(nic,dest.getPod(),vm,network,intentIp);
  }
  DataCenter dc=_dcDao.findById(network.getDataCenterId());
  nic.setDns1(dc.getDns1());
  nic.setDns2(dc.getDns2());
  s_logger.debug("String_Node_Str" + nic + "String_Node_Str"+ vm);
}

Fixed version (ground truth):
@Override public void reserve(NicProfile nic,Network network,VirtualMachineProfile vm,DeployDestination dest,ReservationContext context) throws InsufficientVirtualNetworkCapacityException, InsufficientAddressCapacityException, ConcurrentOperationException {
  if (dest.getHost().getHypervisorType() != HypervisorType.BareMetal) {
    super.reserve(nic,network,vm,dest,context);
    return;
  }
  HostVO host=_hostDao.findById(dest.getHost().getId());
  _hostDao.loadDetails(host);
  String intentIp=host.getDetail(ApiConstants.IP_ADDRESS);
  if (intentIp == null) {
    super.reserve(nic,network,vm,dest,context);
    return;
  }
  String oldIp=nic.getIp4Address();
  boolean getNewIp=false;
  if (oldIp == null) {
    getNewIp=true;
  }
 else {
    final IPAddressVO ipVO=_ipAddressDao.findByIpAndSourceNetworkId(network.getId(),oldIp);
    if (ipVO != null) {
      PodVlanMapVO mapVO=_podVlanDao.listPodVlanMapsByVlan(ipVO.getVlanId());
      if (mapVO.getPodId() != dest.getPod().getId()) {
        Transaction.execute(new TransactionCallbackNoReturn(){
          @Override public void doInTransactionWithoutResult(          TransactionStatus status){
            _ipAddrMgr.markIpAsUnavailable(ipVO.getId());
            _ipAddressDao.unassignIpAddress(ipVO.getId());
          }
        }
);
        nic.setIp4Address(null);
        getNewIp=true;
      }
    }
  }
  if (getNewIp) {
    getBaremetalIp(nic,dest.getPod(),vm,network,intentIp);
  }
  DataCenter dc=_dcDao.findById(network.getDataCenterId());
  nic.setDns1(dc.getDns1());
  nic.setDns2(dc.getDns2());
  s_logger.debug("String_Node_Str" + nic + "String_Node_Str"+ vm);
}