[jdk21u-dev] RFR: 8328030: Convert javax/swing/text/GlyphView/4984669/bug4984669.java applet test to main

[Goetz Lindenmaier]

I backport this for parity with 21.0.9-oracle

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Commit messages:
 - Backport 7502dc99bf23109ef16fb99de25b09bab51e4978

Changes: https://git.openjdk.org/jdk21u-dev/pull/2005/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2005&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8328030
  Stats: 165 lines in 3 files changed: 80 ins; 85 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2005.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2005/head:pull/2005

PR: https://git.openjdk.org/jdk21u-dev/pull/2005