RFR: JDK-8353486 : Open source Swing Tests - Set 4 [v2]

[Harshitha Onkar]

> Open-sourced the following Swing tests:
> 
> 1. javax/swing/JFileChooser/bug4464774.java
> 2. javax/swing/JFileChooser/bug4522756.java
> 3. javax/swing/JFileChooser/bug4759934.java
> 4. javax/swing/JFileChooser/bug4943900.java
> 5. javax/swing/JOptionPane/bug4194862.java

Harshitha Onkar has updated the pull request incrementally with two additional commits since the last revision:

 - JOptionPane changes
 - review changes

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/24456/files
  - new: https://git.openjdk.org/jdk/pull/24456/files/be62d059..491a6428

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24456&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24456&range=00-01

  Stats: 30 lines in 3 files changed: 5 ins; 18 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/24456.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24456/head:pull/24456

PR: https://git.openjdk.org/jdk/pull/24456