[jdk11u-dev] RFR: 8283349: Robustness improvements to java/util/prefs/AddNodeChangeListener.jar

[Amos Shi]

Backport of [JDK-8283349](https://bugs.openjdk.org/browse/JDK-8283349)

Testing
- Local: Test passed
  - `AddNodeChangeListener.java`: Test results: passed: 1
- Pipeline: 
- Testing Machine:

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Commit messages:
 - Backport 656cba7af376d6460202591230ac95d2366de9f3

Changes: https://git.openjdk.org/jdk11u-dev/pull/2695/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2695&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8283349
  Stats: 70 lines in 1 file changed: 30 ins; 17 del; 23 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2695.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2695/head:pull/2695

PR: https://git.openjdk.org/jdk11u-dev/pull/2695