RFR: JDK-8276447 Deprecate finalization-related methods for removal [v3]

[Brent Christian]

> Here are the code changes for the "Deprecate finalizers in the standard Java API" portion of JEP 421 ("Deprecate Finalization for Removal") for code review.
> 
> This change makes the indicated deprecations, and updates the API spec for JEP 421. It also updates the relevant @SuppressWarning annotations.
> 
> The CSR has been approved.
> An automated test build+test run passes cleanly (FWIW :D ).

Brent Christian has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 33 commits:

 - Merge branch 'master' into 8276447
 - Merge branch 'master' into 8276447
 - merge
 - @SuppressWarnings(removal) in Windows CKey.java
 - Add jls tag to runFinalization methods
 - Update wording of Object.finalize, new paragraph is now bold
 - update Object.finalize javadoc
 - update Object.finalize JavaDoc and @deprecated tag
 - Update Object.finalize deprecation message
 - Indicate that runFinalizers does nothing if finalization is disabled or removed
 - ... and 23 more: https://git.openjdk.java.net/jdk/compare/0dfb3a70...8cde0674

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Changes: https://git.openjdk.java.net/jdk/pull/6465/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=6465&range=02
  Stats: 194 lines in 62 files changed: 54 ins; 38 del; 102 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6465.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6465/head:pull/6465

PR: https://git.openjdk.java.net/jdk/pull/6465