dgervalle/xwiki-platform — comment on commit a80fe5de8dd21830aa8ae7fbf74f44e4115bc287
File: xwiki-platform-core/xwiki-platform-oldcore/src/main/java/com/xpn/xwiki/store/migration/hibernate/R32999XWIKI6990DataMigration.java line 153
By sdumitriu:

Why do you remove items from the map, other than eager freeing of resources?