Merge branch 'corrigir-npe-rede-removida-ip-adresses' into '4.20.0.0-scclouds'

Correção em NPE ao listar IPs públicos associados a redes ou VPCs removidas

Closes #1397

See merge request scclouds/scclouds!1343

Author: Bernardo De Marco Gonçalves

server/src/main/java/com/cloud/server/ManagementServerImpl.java

@@ -44,6 +44,7 @@
 import javax.inject.Inject;
 import javax.naming.ConfigurationException;
 
+import com.cloud.network.vpc.VpcVO;
 import com.cloud.utils.security.CertificateHelper;
 import com.cloud.api.query.dao.ManagementServerJoinDao;
 import com.cloud.api.query.vo.ManagementServerJoinVO;
@@ -2499,12 +2500,20 @@ public Pair<List<? extends IpAddress>, Integer> searchForIPAddresses(final ListP
         }
 
         if (associatedNetworkId != null) {
-            _accountMgr.checkAccess(caller, null, false, networkDao.findById(associatedNetworkId));
-            sc.setParameters("associatedNetworkIdEq", associatedNetworkId);
+            NetworkVO associatedNetwork = networkDao.findById(associatedNetworkId);
+
+            if (associatedNetwork != null) {
+                _accountMgr.checkAccess(caller, null, false, associatedNetwork);
+                sc.setParameters("associatedNetworkIdEq", associatedNetworkId);
+            }
         }
         if (vpcId != null) {
-            _accountMgr.checkAccess(caller, null, false, _vpcDao.findById(vpcId));
-            sc.setParameters("vpcId", vpcId);
+            VpcVO vpc = _vpcDao.findById(vpcId);
+
+            if (vpc != null) {
+                _accountMgr.checkAccess(caller, null, false, vpc);
+                sc.setParameters("vpcId", vpcId);
+            }
         }
 
         addrs = _publicIpAddressDao.search(sc, searchFilter); // Allocated