JDK 9 saw the introduction of a new facility to mark items as deprecated for removal (JDK-8145461) as part of enhancing the deprecation mechanism (JDK-8065614). Various APIs throughout the JDK were so marked.
The APIs so marked in 9 should now be removed in a future release.
Individual blocks of APIs should be tracked using subtasks. This bug should be closed when all subtasks have been completed.