RFR: 8327874: Convert javax/swing/JTree/4314199/bug4314199.java applet test to main

[Abhishek Kumar]

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

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Commit messages:
 - Applet based test converted to main manual

Changes: https://git.openjdk.org/jdk/pull/18215/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18215&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8327874
  Stats: 79 lines in 2 files changed: 18 ins; 41 del; 20 mod
  Patch: https://git.openjdk.org/jdk/pull/18215.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18215/head:pull/18215

PR: https://git.openjdk.org/jdk/pull/18215