RFR: 8327755: Convert javax/swing/JScrollBar/8039464/Test8039464.java applet to main

[Prasanta Sadhukhan]

Conversion of manual applet test to main based using PassFailJFrame manual framework

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Commit messages:
 - 8327755: Convert javax/swing/JScrollBar/8039464/Test8039464.java applet to main

Changes: https://git.openjdk.org/jdk/pull/18258/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18258&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8327755
  Stats: 219 lines in 3 files changed: 95 ins; 124 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/18258.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18258/head:pull/18258

PR: https://git.openjdk.org/jdk/pull/18258