Few closed manual applet JViewport tests are converted to main based and opensourced
------------- Commit messages: - 8328570: Convert closed JViewport manual applet tests to main Changes: https://git.openjdk.org/jdk/pull/18418/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18418&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8328570 Stats: 429 lines in 5 files changed: 429 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/18418.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/18418/head:pull/18418 PR: https://git.openjdk.org/jdk/pull/18418
