RFR: 8311000: missing @since info in jdk.management [v2]

[Kevin Walls]

> Simple addition of a doc tag.  
> 
> src/share/classes/com/sun/management/GarbageCollectionNotificationInfo.java is introduced in jdk7 by
> 7036199: Adding a notification to the implementation of GarbageCollectorMXBeans

Kevin Walls has updated the pull request incrementally with one additional commit since the last revision:

  (C)

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Changes:
  - all: https://git.openjdk.org/jdk/pull/14708/files
  - new: https://git.openjdk.org/jdk/pull/14708/files/b4c36af7..30632c98

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14708&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14708&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/14708.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14708/head:pull/14708

PR: https://git.openjdk.org/jdk/pull/14708