Sometimes a plugin needs to restore some data from an external source into its AO tables. In case a table has @AutoIncrement primary key, it is a problem, which requires different solutions depending on the RDBMS involved.
(If you wonder why would a plugin want to restore its data when JIRA can do it, at least consider a feature similar to "Import Project" in JIRA.)
The problem is already solved in the AO in the *AroundImporter classes, with "before" and "after" methods, but the packages - com.atlassian.activeobjects.backup, com.atlassian.dbexporter, com.atlassian.dbexporter.importer are not exported and cannot be directly used by plugins.
While I'm not asking for a full API to do the restore operation by hand, but just including these packages in the OSGi exports, so we can depend on them directly. (Right now we have to go through the other plugin's ClassLoader.)