RFR: 8315834: Open source several Swing JSpinner related tests [v2]

[Tejesh R]

> Open source these Swing JSpinner related tests:
> 
> javax/swing/JSpinner/4522737/bug4522737.java
> javax/swing/JSpinner/4656590/bug4656590.java
> javax/swing/JSpinner/4680204/bug4680204.java
> javax/swing/JSpinner/4862257/bug4862257.java
> javax/swing/JSpinner/5104421/bug5104421.java

Tejesh R has updated the pull request incrementally with one additional commit since the last revision:

  Review fix

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/15678/files
  - new: https://git.openjdk.org/jdk/pull/15678/files/094b7a32..8ca1f0fd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15678&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15678&range=00-01

  Stats: 19 lines in 2 files changed: 3 ins; 8 del; 8 mod
  Patch: https://git.openjdk.org/jdk/pull/15678.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15678/head:pull/15678

PR: https://git.openjdk.org/jdk/pull/15678