[jdk17u-dev] RFR: 8354646: java.awt.TextField allows to identify the spaces in a password when double clicked at the starting and end of the text

[Goetz Lindenmaier]

I backport this for parity with 17.0.18-oracle
Resolved copyright, probably clean anyways.

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Commit messages:
 - backport 8d33ea7395e5dd504b899d8972617f6696546d84

Changes: https://git.openjdk.org/jdk17u-dev/pull/3980/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3980&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354646
  Stats: 149 lines in 5 files changed: 110 ins; 34 del; 5 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3980.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3980/head:pull/3980

PR: https://git.openjdk.org/jdk17u-dev/pull/3980