RFR: 8315726: Open source several AWT applet tests [v5]

[Alexander Zvegintsev]

> Some closed AWT test are open sourced.

Alexander Zvegintsev has updated the pull request incrementally with one additional commit since the last revision:

  fix whitespaces

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/15671/files
  - new: https://git.openjdk.org/jdk/pull/15671/files/758c0454..a367ad34

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15671&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15671&range=03-04

  Stats: 5 lines in 1 file changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/15671.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15671/head:pull/15671

PR: https://git.openjdk.org/jdk/pull/15671