RFR: 8327748: Convert javax/swing/JFileChooser/6798062/bug6798062.java applet test to main [v5]

[Prasanta Sadhukhan]

> Conversion of manual applet test to main based using PassFailJFrame manual framework

Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:

  Revert to tempDir

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Changes:
  - all: https://git.openjdk.org/jdk/pull/18180/files
  - new: https://git.openjdk.org/jdk/pull/18180/files/abd16b4f..d2da657b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18180&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18180&range=03-04

  Stats: 12 lines in 1 file changed: 9 ins; 1 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/18180.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18180/head:pull/18180

PR: https://git.openjdk.org/jdk/pull/18180