Fixed few coverity reported issues:Aug22 2014

api/src/com/cloud/agent/api/to/VirtualMachineTO.java

@@ -50,7 +50,6 @@ public class VirtualMachineTO {
     String platformEmulator;
     String bootArgs;
     String[] bootupScripts;
-    boolean rebootOnCrash;
     boolean enableHA;
     boolean limitCpuUse;
     boolean enableDynamicallyScaleVm;

api/src/org/apache/cloudstack/api/command/admin/router/ConfigureVirtualRouterElementCmd.java

@@ -127,8 +127,10 @@ public class ConfigureVirtualRouterElementCmd extends BaseAsyncCmd {
         VirtualRouterProvider result = _service.get(0).configure(this);
         if (result != null) {
             VirtualRouterProviderResponse routerResponse = _responseGenerator.createVirtualRouterProviderResponse(result);
+            if(routerResponse != null) {
                 routerResponse.setResponseName(getCommandName());
                 this.setResponseObject(routerResponse);
+            }
         } else {
             throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to configure the virtual router provider");
         }

api/src/org/apache/cloudstack/api/command/admin/router/CreateVirtualRouterElementCmd.java

@@ -110,8 +110,10 @@ public class CreateVirtualRouterElementCmd extends BaseAsyncCreateCmd {
         VirtualRouterProvider result = _service.get(0).getCreatedElement(getEntityId());
         if (result != null) {
             VirtualRouterProviderResponse response = _responseGenerator.createVirtualRouterProviderResponse(result);
+            if(response != null) {
                 response.setResponseName(getCommandName());
                 this.setResponseObject(response);
+            }
         } else {
             throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to add Virtual Router entity to physical network");
         }

api/src/org/apache/cloudstack/api/command/admin/usage/ListTrafficTypesCmd.java

@@ -80,13 +80,14 @@ public class ListTrafficTypesCmd extends BaseListCmd {
         Pair<List<? extends PhysicalNetworkTrafficType>, Integer> trafficTypes = _networkService.listTrafficTypes(getPhysicalNetworkId());
         ListResponse<TrafficTypeResponse> response = new ListResponse<TrafficTypeResponse>();
         List<TrafficTypeResponse> trafficTypesResponses = new ArrayList<TrafficTypeResponse>();
+        if(trafficTypes != null) {
             for (PhysicalNetworkTrafficType trafficType : trafficTypes.first()) {
                 TrafficTypeResponse trafficTypeResponse = _responseGenerator.createTrafficTypeResponse(trafficType);
                 trafficTypesResponses.add(trafficTypeResponse);
             }
-
             response.setResponses(trafficTypesResponses, trafficTypes.second());
             response.setResponseName(getCommandName());
+        }
         this.setResponseObject(response);
     }
 }

api/src/org/apache/cloudstack/api/command/admin/user/RegisterCmd.java

@@ -75,8 +75,10 @@ public class RegisterCmd extends BaseCmd {
     public void execute() {
         String[] keys = _accountService.createApiKeyAndSecretKey(this);
         RegisterResponse response = new RegisterResponse();
+        if (keys != null) {
             response.setApiKey(keys[0]);
             response.setSecretKey(keys[1]);
+        }
         response.setObjectName("userkeys");
         response.setResponseName(getCommandName());
         this.setResponseObject(response);

api/src/org/apache/cloudstack/api/command/admin/vlan/CreateVlanIpRangeCmd.java

@@ -129,7 +129,7 @@ public class CreateVlanIpRangeCmd extends BaseCmd {
     }
 
     public Boolean isForVirtualNetwork() {
-        return forVirtualNetwork == null ? true : forVirtualNetwork;
+        return forVirtualNetwork == null ? Boolean.TRUE : forVirtualNetwork;
     }
 
     public String getGateway() {

api/src/org/apache/cloudstack/api/command/user/address/AssociateIPAddrCmd.java

@@ -172,10 +172,6 @@ public class AssociateIPAddrCmd extends BaseAsyncCreateCmd {
         }
         Long zoneId = getZoneId();
 
-        if (zoneId == null) {
-            return null;
-        }
-
         DataCenter zone = _entityMgr.findById(DataCenter.class, zoneId);
         if (zone.getNetworkType() == NetworkType.Advanced) {
             List<? extends Network> networks = _networkService.getIsolatedNetworksOwnedByAccountInZone(getZoneId(), _accountService.getAccount(getEntityOwnerId()));

api/src/org/apache/cloudstack/api/command/user/address/UpdateIPAddrCmd.java

@@ -127,8 +127,10 @@ public class UpdateIPAddrCmd extends BaseAsyncCustomIdCmd {
             NetworkRuleConflictException {
 
         IpAddress result = _networkService.updateIP(getId(), getCustomId(), getDisplayIp());
+        if(result != null) {
             IPAddressResponse ipResponse = _responseGenerator.createIPAddressResponse(ResponseView.Restricted, result);
             ipResponse.setResponseName(getCommandName());
             setResponseObject(ipResponse);
         }
+    }
 }

engine/orchestration/src/org/apache/cloudstack/engine/orchestration/NetworkOrchestrator.java

@@ -749,13 +749,14 @@ public class NetworkOrchestrator extends ManagerBase implements NetworkOrchestra
                         }
 
                         Pair<NicProfile, Integer> vmNicPair = allocateNic(requested, config, isDefaultNic, deviceId, vm);
-
+                        NicProfile vmNic = null;
-                        NicProfile vmNic = vmNicPair.first();
+                        if(vmNicPair != null) {
+                            vmNic = vmNicPair.first();
                             if (vmNic == null) {
                                 continue;
                             }
-
                             deviceId = vmNicPair.second();
+                        }
 
                         int devId = vmNic.getDeviceId();
                         if (devId > deviceIds.length) {

plugins/network-elements/netscaler/src/com/cloud/network/resource/NetscalerResource.java

@@ -3174,7 +3174,9 @@ public class NetscalerResource implements ServerResource {
                 scaleUpAction.set_vserver(nsVirtualServerName); // Actions Vserver, the one that is autoscaled, with CS
                 // now both are same. Not exposed in API.
                 scaleUpAction.set_profilename(profileName);
+                if(scaleUpQuietTime != null) {
                     scaleUpAction.set_quiettime(scaleUpQuietTime);
+                }
                 String scaleUpParameters =
                         "command=deployVirtualMachine" + "&" + ApiConstants.ZONE_ID + "=" + profileTO.getZoneId() + "&" + ApiConstants.SERVICE_OFFERING_ID + "=" +
                                 profileTO.getServiceOfferingId() + "&" + ApiConstants.TEMPLATE_ID + "=" + profileTO.getTemplateId() + "&" + ApiConstants.DISPLAY_NAME + "=" +

server/src/com/cloud/api/dispatch/ParamProcessWorker.java

@@ -341,11 +341,14 @@ public class ParamProcessWorker implements DispatchWorker {
                     field.set(cmdObj, Short.valueOf(paramObj.toString()));
                     break;
                 case STRING:
-                    if ((paramObj != null) && paramObj.toString().length() > annotation.length()) {
+                    if ((paramObj != null)) {
+                        if (paramObj.toString().length() > annotation.length()) {
                             s_logger.error("Value greater than max allowed length " + annotation.length() + " for param: " + field.getName());
                             throw new InvalidParameterValueException("Value greater than max allowed length " + annotation.length() + " for param: " + field.getName());
-                    }
+                        } else {
                             field.set(cmdObj, paramObj.toString());
+                        }
+                    }
                     break;
                 case TZDATE:
                     field.set(cmdObj, DateUtil.parseTZDateString(paramObj.toString()));

server/src/com/cloud/network/lb/LoadBalancingRulesManagerImpl.java

@@ -1600,8 +1600,10 @@ public class LoadBalancingRulesManagerImpl<Type> extends ManagerBase implements
             NetworkOffering off = _entityMgr.findById(NetworkOffering.class, network.getNetworkOfferingId());
             if (off.getElasticLb() && ipVO == null && network.getVpcId() == null) {
                 systemIp = _ipAddrMgr.assignSystemIp(networkId, lbOwner, true, false);
+                if (systemIp != null) {
                     ipVO = _ipAddressDao.findById(systemIp.getId());
                 }
+            }
 
             // Validate ip address
             if (ipVO == null) {

server/src/com/cloud/storage/VolumeApiServiceImpl.java

@@ -2141,7 +2141,7 @@ public class VolumeApiServiceImpl extends ManagerBase implements VolumeApiServic
         }
 
         if (sendCommand) {
-            if (host.getHypervisorType() == HypervisorType.KVM &&
+            if (host != null && host.getHypervisorType() == HypervisorType.KVM &&
                     volumeToAttachStoragePool.isManaged() &&
                     volumeToAttach.getPath() == null) {
                 volumeToAttach.setPath(volumeToAttach.get_iScsiName());
@@ -2178,8 +2178,9 @@ public class VolumeApiServiceImpl extends ManagerBase implements VolumeApiServic
             try {
                 answer = (AttachAnswer)_agentMgr.send(hostId, cmd);
             } catch (Exception e) {
+                if(host!=null) {
                     volService.disconnectVolumeFromHost(volFactory.getVolume(volumeToAttach.getId()), host, dataStore);
-
+                }
                 throw new CloudRuntimeException(errorMsg + " due to: " + e.getMessage());
             }
         }
@@ -2216,9 +2217,9 @@ public class VolumeApiServiceImpl extends ManagerBase implements VolumeApiServic
                     errorMsg += "; " + details;
                 }
             }
-
+            if(host!= null) {
                 volService.disconnectVolumeFromHost(volFactory.getVolume(volumeToAttach.getId()), host, dataStore);
-
+            }
             throw new CloudRuntimeException(errorMsg);
         }
     }

server/src/com/cloud/storage/download/DownloadMonitorImpl.java

@@ -182,10 +182,11 @@ public class DownloadMonitorImpl extends ManagerBase implements DownloadMonitor
 
     @Override
     public void downloadTemplateToStorage(DataObject template, AsyncCompletionCallback<DownloadAnswer> callback) {
+        if(template != null) {
             long templateId = template.getId();
             DataStore store = template.getDataStore();
             if (isTemplateUpdateable(templateId, store.getId())) {
-            if (template != null && template.getUri() != null) {
+                if (template.getUri() != null) {
                     initiateTemplateDownload(template, callback);
                 } else {
                     s_logger.info("Template url is null, cannot download");
@@ -199,6 +200,7 @@ public class DownloadMonitorImpl extends ManagerBase implements DownloadMonitor
                 callback.complete(ans);
             }
         }
+    }
 
     @Override
     public void downloadVolumeToStorage(DataObject volume, AsyncCompletionCallback<DownloadAnswer> callback) {