public class IllegalUpgradeStateException
Bug 28222975, unbreakable upgrade.
Indicate to callers of the execute or isCompleted functionality (in
CRMManager UpgradeDescriptor.xml) that the ADFContext on the request isn't
setup as expected. Usually this is because of browser multi-tab actions by user.
Examples: sandbox null, no upgradeable cc in list, upgradeable cc not tip.
But *not* when a request to upgrade site tip but industry upgrade is failed.
In that last case a simple java.lang.IllegalStateException will be used.