[jdk17u-dev] RFR: 8341004: Open source AWT FileDialog related tests

[Goetz Lindenmaier]

I backport this for parity with 17.0.16-oracle.

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

Commit messages:
 - Backport 7d524d7e378430afb3a262e8fe544bd1be22748c

Changes: https://git.openjdk.org/jdk17u-dev/pull/3375/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3375&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8341004
  Stats: 279 lines in 3 files changed: 279 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3375.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3375/head:pull/3375

PR: https://git.openjdk.org/jdk17u-dev/pull/3375