rafaelweingartner commented on a change in pull request #2577: Prevent NPE if
guest OS mapping is missing while prioritizing hosts
URL: https://github.com/apache/cloudstack/pull/2577#discussion_r182134818
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File path:
server/src/main/java/com/cloud/agent/manager/allocator/impl/FirstFitAllocator.java
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@@ -417,6 +419,10 @@ public boolean isVirtualMachineUpgradable(VirtualMachine
vm, ServiceOffering off
// Determine the guest OS category of the template
String templateGuestOSCategory = getTemplateGuestOSCategory(template);
+ if (Strings.isNullOrEmpty(templateGuestOSCategory)) {
Review comment:
if you return a `null` value in `getTemplateGuestOSCategory` method, why not
simply check `templateGuestOSCategory == null`?
Is it possible to have an empty or blank `guestOSCategory.name`?
BTW: `Strings.isNullOrEmpty` will return `false` for blanks.
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