[jdk17u-dev] RFR: 8328000: Convert /java/awt/im/8154816/bug8154816.java applet test to main

[Goetz Lindenmaier]

I backport this for parity with 17.0.17-oracle.

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Commit messages:
 - Backport fc0472baf9bad298e853bf2ca3d10dc9415272cd

Changes: https://git.openjdk.org/jdk17u-dev/pull/3842/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3842&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8328000
  Stats: 168 lines in 3 files changed: 82 ins; 86 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3842.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3842/head:pull/3842

PR: https://git.openjdk.org/jdk17u-dev/pull/3842