[jdk25u] RFR: 8354646: java.awt.TextField allows to identify the spaces in a password when double clicked at the starting and end of the text

[Alexey Ivanov]

This pull request contains a backport of commit [8d33ea73](https://github.com/openjdk/jdk/commit/8d33ea7395e5dd504b899d8972617f6696546d84) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by jeremy on 12 Jun 2025 and was reviewed by Alexey Ivanov, Alexander Zuev, Tejesh R and Prasanta Sadhukhan.

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Commit messages:
 - Backport 8d33ea7395e5dd504b899d8972617f6696546d84

Changes: https://git.openjdk.org/jdk25u/pull/133/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk25u&pr=133&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/jdk25u/pull/133.diff
  Fetch: git fetch https://git.openjdk.org/jdk25u.git pull/133/head:pull/133

PR: https://git.openjdk.org/jdk25u/pull/133