RFR: 8352684: Opensource JInternalFrame tests - series1 [v2]

[Prasanta Sadhukhan]

> Few JInternalFrame tests are opensourced

Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:

  spacing

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Changes:
  - all: https://git.openjdk.org/jdk/pull/24447/files
  - new: https://git.openjdk.org/jdk/pull/24447/files/9a49d316..b22ff769

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24447&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24447&range=00-01

  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/24447.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24447/head:pull/24447

PR: https://git.openjdk.org/jdk/pull/24447