don't call vmInstanceDao.listByIdsIncludingRemoved with empty list.

Author: abh1sar

server/src/main/java/org/apache/cloudstack/backup/BackupManagerImpl.java

@@ -1754,7 +1754,12 @@ private void syncOutOfBandBackups(final BackupProvider backupProvider, DataCente
 
         private void updateBackupUsageRecords(final BackupProvider backupProvider, DataCenter dataCenter) {
             List<Long> vmIdsWithBackups = backupDao.listVmIdsWithBackupsInZone(dataCenter.getId());
-            List<VMInstanceVO> vmsWithBackups = vmInstanceDao.listByIdsIncludingRemoved(vmIdsWithBackups);
+            List<VMInstanceVO> vmsWithBackups;
+            if (vmIdsWithBackups.size() == 0) {
+                vmsWithBackups = new ArrayList<>();
+            } else {
+                vmsWithBackups = vmInstanceDao.listByIdsIncludingRemoved(vmIdsWithBackups);
+            }
             List<VMInstanceVO> vmsWithBackupOffering = vmInstanceDao.listByZoneAndBackupOffering(dataCenter.getId(), null); //should return including removed
             Set<VMInstanceVO> vms =  Stream.concat(vmsWithBackups.stream(), vmsWithBackupOffering.stream()) .collect(Collectors.toSet());