[jdk17u-dev] RFR: 8358813: JPasswordField identifies spaces in password via delete shortcuts

[Goetz Lindenmaier]

I backport this for parity with 17.0.18-oracle

-------------

Commit messages:
 - Backport 8d73fe91bccd1da53424b9f8a52d9efafabeb243

Changes: https://git.openjdk.org/jdk17u-dev/pull/4138/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=4138&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8358813
  Stats: 121 lines in 2 files changed: 121 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/4138.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/4138/head:pull/4138

PR: https://git.openjdk.org/jdk17u-dev/pull/4138