RFR: 8328558: Convert javax/swing/JCheckBox/8032667/bug8032667.java applet test to main [v4]

[Damon Nguyen]

> Convert javax/swing/JCheckBox/8032667/bug8032667.java applet test to main using PassFailJFrame

Damon Nguyen has updated the pull request incrementally with one additional commit since the last revision:

  Remove contentPane

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Changes:
  - all: https://git.openjdk.org/jdk/pull/18403/files
  - new: https://git.openjdk.org/jdk/pull/18403/files/839a7db9..f9f02662

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18403&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18403&range=02-03

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/18403.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18403/head:pull/18403

PR: https://git.openjdk.org/jdk/pull/18403