com.atlassian.jira.upgrade.util
Interfaces 
LegacyPortletUpgradeTask
LegacyPortletUpgradeTaskFactory
SearchRequestConverter
Classes 
AbstractLegacyPortletUpgradeTask
DefaultLegacyPortletUpgradeTaskFactory
SimpleLegacyPortletUpgradeTask
UpgradeUtils
UsersGroupParamConverter
XsltSearchRequestTransformer