[jdk21u-dev] RFR: 8327876: Convert javax/swing/border/Test4252164.java applet test to main

[Goetz Lindenmaier]

I backport this for parity with 21.0.9-oracle

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Commit messages:
 - Backport acfefc6c7aea6903bd575c2cb6edddbd88b112bf

Changes: https://git.openjdk.org/jdk21u-dev/pull/2033/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2033&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8327876
  Stats: 81 lines in 2 files changed: 14 ins; 44 del; 23 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2033.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2033/head:pull/2033

PR: https://git.openjdk.org/jdk21u-dev/pull/2033